Saturday, March 31, 2018

ESA to Study Links Between Space Debris Removal and Satellite Servicing [bestandroiddoubledinheadunit950.blogspot.com]

ESA to Study Links Between Space Debris Removal and Satellite Servicing [bestandroiddoubledinheadunit950.blogspot.com]

SAN FRANCISCO – The European Space Agency is no longer proceeding full speed ahead with its campaign to send a 1,600-kilogram satellite into low Earth orbit to grab its defunct Earth observing Envisat and bring it back into the atmosphere around 2023. Instead, the agency has revised its e.Deorbit program plan to study the synergies between the mission and satellite servicing vehicles.

“What we are implementing at the moment is a study to find out whether we should modify the mission design to make the vehicle more flexible and able to perform a variety of servicing missions including removing objects from orbit,” said Luisa Innocenti, head of EASA’s Clean Space Office.

In parallel with that effort, ESA’s Clean Space Office expects to receive funding of approximately 10 million euros in 2018 to continue to develop robotic arm technologies with many possible applications including satellite servicing and active debris removal. [Space Junk Cleanup: 7 Wild Ways to Destroy Orbital Debris]

The e.Deorbit program previously focused on developing robotic arms and nets to capture space debris. Now, “the baseline is the robotics arm because of the synergies with servicing, but the net is not abandoned,” Innocenti told SpaceNews. “It remains a very valid back-up should the robotics arm capturing face some technical issues.”

E.Deorbit is part of ESA’s Clean Space Initiative, which promotes environmentally friendly innovation like spacecraft materials and equipment that will burn up completely in Earth’s atmosphere and spacecraft propulsion systems that minimize the amount of propellant needed for atmospheric reentry.

The office also emphasizes the importance of the Inter-Agency Space Debris Coordination Committee’s guidelines, which recommend spacecraft in low Earth orbit reenter the atmosphere within 25 years of the end of their missions.

“We must implement the debris mitigation rules in a consistent way so in the future we stop leaving debris in space,” Innocenti said. “Everbody looks at e.Deorbit because it’s sexy. What is more important is to talk about future pollution because there is no point in removing a satellite today if tomorrow we launch another satellite which remains there.”

This story was provided by SpaceNews, dedicated to covering all aspects of the space industry.

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https://www.space.com/40080-esa-space-debris-removal-satellite-servicing-study.html ESA to Study Links Between Space Debris Removal and Satellite Servicing

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Kepler Space Telescope: Exoplanet Hunter [bestandroiddoubledinheadunit950.blogspot.com]

Zero 2 Infinity Gets 3D-Printed Engine Part for Bloostar Launch Vehicle [bestandroiddoubledinheadunit950.blogspot.com]

Friday, March 30, 2018

The March of Women: A Giant Leap for Humanity (Op-Ed) [bestandroiddoubledinheadunit950.blogspot.com]

See China’s Falling Space Station in These Radar Images [bestandroiddoubledinheadunit950.blogspot.com]

In Rare Supernova, Cocooned Star Dies Super-Rapid Death [bestandroiddoubledinheadunit950.blogspot.com]

Weight loss: Woman shows off EIGHT stone drop in one year after doing THIS simple trick [bestandroiddoubledinheadunit950.blogspot.com]

Weight loss: Woman shows off EIGHT stone drop in one year after doing THIS simple trick [bestandroiddoubledinheadunit950.blogspot.com]

Weight loss before and after pictures are often inspiring, and this particular woman’s diet trick is particularly simple and easy to follow.

Imgur user peachyxo revealed her 111lbs (or eight stone) weight loss after one year of following a slimming routine.

Shee wrote: “I totally should’ve cleaned the grossness on my mirror before taking pictures this morning, but I was excited about it being my one year anniversary on keto!

Revealing her total weight loss, she said: “I’ve lost exactly 111 pounds since starting!” 

She began at a start weight of 303.4lbs (22 stone), and went down to her current weight of 192.4lbs (14 stone).

Explaining how she did it, she wrote: “I ate a ketogenic diet. Basically low carb. No pastas, breads, rice, sugars, etc.”

Explaining the trick behind her meals, peachyxo wrote: “I would typically have my meals follow this formula: protein + leafy green (or some kind of veggie) + cheese.”

What is the ketogenic diet?

The ketogenic diet, also known as the keto diet, is a high fat, low-carbohydrate diet which forces the body to burn fats instead of carbohydrates.

User peachyxo also outlined her exercise routine: “I worked out for like three weeks in April, then didn’t do anything for a few months, then started cycling and belly dance sporadically in October.”

She then went on to try different forms of exercise: “Now I do cycling and Krav Maga regularly (at least 3 times a week).

“Haven’t done belly dance since February, but looking to start again! I would say the majority of my weight loss was done without exercise, though.”

Recently, an obese woman revealed the secrets behind her six stone weight loss – despite being a cake maker.

Jennie Hudson, 26, knew she had to try and lose weight after becoming a size 20 and weighing 18 stone.

Eating three meals a night, she would regularly ear 5,000 calories a day – two and a half times the recommended daily intake for women. This included sharing bars of chocolates and packs of cakes.

It was during her time at university that she realised she needed to do something about her body.

She admitted: “I remember being at a party, surrounded by slim girls and I couldn’t stand it.

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https://www.express.co.uk/life-style/diets/937329/weight-loss-diet-keto-low-carb-before-and-after-pictures Weight loss: Woman shows off EIGHT stone drop in one year after doing THIS simple trick

[bestandroiddoubledinheadunit950.blogspot.com]Weight loss: Woman shows off EIGHT stone drop in one year after doing THIS simple trick

Tiangong-1: China’s First Space Station [bestandroiddoubledinheadunit950.blogspot.com]

NASA Is Testing a Supersonic Mars Parachute Thursday: Watch It Live [bestandroiddoubledinheadunit950.blogspot.com]

Thursday, March 29, 2018

Does It Matter That NASA Still Doesn’t Have a Permanent Leader? [bestandroiddoubledinheadunit950.blogspot.com]

Does It Matter That NASA Still Doesn’t Have a Permanent Leader? [bestandroiddoubledinheadunit950.blogspot.com]

NASA has been without a permanent administrator for almost 14 months, which is a record.

Earlier this week, NASA’s acting administrator, Robert Lightfoot, announced that he will retire from NASA on April 30. If no permanent NASA chief is appointed before then, the associate administrator, Steve Jurczyk, will take the reins. (Jurczyk’s current position would ordinarily make him third in line, but NASA has no deputy administrator at the moment.)

This lengthy vacuum of permanent leadership hasn’t hamstrung the space agency, but it does make it harder for NASA to get things done, space policy experts said. [In Photos: President Donald Trump and NASA]

“The current situation is clearly unacceptable, because a person who is acting — he or she has less legitimacy, less political influence,” John Logsdon, professor emeritus of political science and international affairs at George Washington University, told Space.com.

“Congress doesn’t have to take them seriously,” he added. “You can execute policy if the White House gives direction, but it’s hard to take the initiative.”

The White House has given NASA direction recently, for what it’s worth: In December, the Trump administration tasked the agency with sending astronauts back to the moon, as a precursor to crewed Mars missions.

A quick history: NASA’s last official administrator was former space shuttle commander Charles Bolden. He and his deputy left office on Jan. 20, 2017, the day that Donald Trump was sworn in as president . Lightfoot, then NASA’s associate administrator, began acting in Bolden’s place. The White House did not nominate a permanent successor — former Rep. Jim Bridenstine, R-Okla., — until Sept. 1, 2017. 

Meanwhile, NASA’s No. 2 position also remains vacant. The agency’s last deputy administrator, Lesa Roe (who was an acting rather than permanent deputy), left the position in September. Bridenstine is still awaiting confirmation. With Lightfoot leaving, no deputy administrator in place and Bridenstine not confirmed yet, Jurczyk is set to assume the leadership position.

“The NASA administrator position has to be confirmed by the Senate. So that requires a Senate committee to first screen the candidate, and vote on whether they want that candidate to be heard by the entire Senate. And then the Senate needs to vote and approve the position,” said Robert Pearlman, editor of the space history and memorabilia website collectSPACE, which is a Space.com partner.

“In this case, the White House’s nominee, Jim Bridenstine — he is a congressman from Oklahoma, and there have been some concerns raised about having a politician serve as NASA administrator,” Pearlman told Space.com. He added that some concerns may have partisan roots — namely, that Democrats in the Senate may not want to confirm a Republican politician to run NASA. [From Ike to Trump: Presidential Visions for Space Exploration]

Bridenstine’s office declined to speak with Space.com, saying that the former congressman is not doing interviews during the confirmation process.

A representative from Lightfoot’s office at NASA did not respond to interview requests before this article’s deadline. But in remarks to the House Science Committee’s Subcommittee on Space on March 7, Lightfoot said that his access to policymakers hasn’t been unduly restricted.

“From my perspective, as the one sitting in that chair, it is always of value to have the person the president wants in this position,” said Lightfoot in his testimony, Spaceflight Now reported. 

“And I think that would be important for us all from that standpoint,” he continued. “But I can tell you for the past year I’ve had no trouble having access to the people I need to have access to. I’ve been to both [National] Space Councils. I haven’t had to sit in the back row. I’ve sat right at the table as the administrator would be. But there is value in having the approved presidential nominee in the chair.”

The longest-serving acting administrator before Lightfoot was George Low, who held that title from September 1970 to April 1971 — a span of 222 days, Pearlman said. 

On average, it takes just 40 days to appoint a permanent NASA administrator, Jason Davis, a digital editor for the nonprofit Planetary Society, wrote in September 2017. The shortest confirmation time was just 15 days, for James Webb back in 1961, he added. (The average appointment time is now 53 days, according to Davis’ calculations. Lightfoot, whose tenure was included in the average, has served for much longer now than he had back in September.)

Acting administrators have served in interesting times, however. Perhaps the most famous example was Thomas O. Paine, who was one of the players in authorizing the Apollo 8 moon-orbiting mission in December 1968. He became acting NASA administrator on Oct. 8, 1968, less than three months before Apollo 8’s launch.

At the time, NASA was in a race to get humans to the moon first, before the Soviet Union. NASA had a mandate to land a human on the moon before the end of 1969. (Spoiler alert: It succeeded.) Apollo 8 was originally supposed to be an Earth-orbiting mission, but it was sent on a moon-orbiting mission instead — in large part because it was feared the Soviet Union would also attempt a human moon-orbiting mission before the end of the year.

“It was Tom Paine that gave the approval to Apollo 8,” Logsdon said. “He had become enthusiastic about it when he heard about the idea in August, as deputy. Webb was skeptical. Webb left before the final decision was made. Paine made sure there was an exhaustive review, and approved it.” [Lunar Legacy: 45 Apollo Moon Mission Photos]

Paine eventually became permanent administrator and served until 1970. At the time, an ad hoc committee called the Space Task Group (chaired by then U.S. Vice President Spiro Agnew) was looking at options after the Apollo moon program. Paine left after proposing an ambitious plan for NASA to explore space. Paine wanted a space station, a space transportation system and a mission to Mars, according to Roger Launius, who recently retired from his curatorial position at the Smithsonian National Air and Space Museum in Washington, D.C.

“The Nixon administration basically said ‘No’ to all of Paine’s ideas, so Paine resigned in September of 1970,” Launius told Space.com. Low became acting administrator in his place. While acting as administrator, Low’s approach was more modest; in the NASA budget he submitted to the White House that September, he recommended building a space transportation system first. That was the first baby step toward the space shuttle program, which flew between 1981 and 2011.

NASA has now been tasked with sending humans back to the moon, likely toward the end of the 2020s. As is typical of these discussions, critics worry that the agency is not allocating enough budgetary resources to accomplish this goal in this timeframe. The larger question, however, is whether an acting administrator could effectively shepherd this policy long enough for it to take hold.

Having an acting administrator “is a problem in the sense that you don’t have direction from somebody who’s a representative of the president,” Launius said. While the agency’s operations continue, the acting administrator has the delicate job of reflecting the Trump administration’s priorities while acting as a voice for NASA to the White House, he added. 

“That interchange of information is obviously taking place, but it’s taking place at other levels,” Launius said. Such interchanges are occurring between senior-level NASA officials, the Office of Science and Technology Policy at the White House, and the committees in Congress tasked with overseeing parts of NASA, he added.

Logsdon pointed out that Lightfoot’s resignation in April will come at an interesting moment. Typically, NASA administrators spend the summer working on the budget for the coming year. This means it likely will be Lightfoot’s successor who will be working on policy for the 2019 NASA budget, Logsdon said.

Follow us @Spacedotcom, Facebook or Google+. Originally published on Space.com.

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Did Prehistoric ‘Astronomers’ Build Stonehenge? [bestandroiddoubledinheadunit950.blogspot.com]

Weight loss: Obese women lost six stone by doing this – despite being a CAKE maker [bestandroiddoubledinheadunit950.blogspot.com]

Weight loss: Obese women lost six stone by doing this – despite being a CAKE maker [bestandroiddoubledinheadunit950.blogspot.com]

Weight loss is a part of many people’s goals when trying to become healthier and slim down, and was for one woman who had struggled with her weight.

Jennie Hudson, 26, knew she had to try and lose weight after becoming a size 20 and weighing 18 stone.

Earring three meals a night, she would regularly ear 5,000 calories a day – two and a half times the recommended daily intake for women. This included sharing bars of chocolates and packs of cakes.

It was during her time at university that she realised she needed to do something about her body.

She admitted: “I remember being at a party, surrounded by slim girls and I couldn’t stand it.

“I felt disgusting, as everyone looked gorgeous, except me. I’d struggled to find anything to wear that night and felt so uncomfortable, I just left.”

Her secret eating meant she would often buy “two meal deal [and] eat one on my own,” as well as spending up to £90 a week on her food shop.

Her weight gain was made harder having had surgery to remove her gallbladder at 19-year-old, and gain the five stone that she had lost before this.

However, after meeting her now husband Lewis, 28, in 2013, and becoming engaged the following year, she knew she needed to lose weight.

Weighting 15 stone, she vowed not to be a “fat bride,” and wanted to lose the weight before the wedding in 2016.

By joining Weight Watchers along with her partner, she lost over six stone and became a healthy size 12.

“On my wedding day, I wore a stunning ivory strapless gown and, while I’d once felt more like Shrek, I felt like a princess,: she admitted.

Her new diet consists of much smaller portions, as well as healthy baked oats, salads and soups, although one temptation remains.

Jennie currently works as a cake maker, something she admits is difficult.

She said: “I can’t trust myself when it comes to sampling my own cakes.”

“It’s all or nothing, so I just have to make sure I don’t start, or I’ll polish off the lot!”

One woman lost over half her body weight after getting stuck on a rollercoaster.

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https://www.express.co.uk/life-style/diets/936473/weight-loss-diet-plan-lose-belly-fat Weight loss: Obese women lost six stone by doing this – despite being a CAKE maker

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Alaskan Spaceport to Host Secretive Commercial Launch Soon [bestandroiddoubledinheadunit950.blogspot.com]

Alaskan Spaceport to Host Secretive Commercial Launch Soon [bestandroiddoubledinheadunit950.blogspot.com]

WASHINGTON — An Alaskan spaceport will host the first launch of a rocket developed by a stealthy startup company as soon as next week, spaceport officials confirmed March 20.

Alaska Aerospace Corp., which operates Pacific Spaceport Complex Alaska (PSCA) on Kodiak Island, said the launch period for the flight of the unidentified vehicle runs from March 27 to April 6. It did not specify when during the day the launch would take place.

A “Local Notice to Mariners” issued by the U.S. Coast Guard March 14 included a notice about a rocket launch planned from PSCA, giving a window of March 26 to April 6. The notice included two caution areas, one in waters immediately south of the spaceport and the other several hundred kilometers to the south-southwest, that mariners should stay clear of during launch operations.

The spaceport is releasing few details about the launch itself. “I can only say PSCA is conducting a launch operation called P120 and it is a commercial California company,” said Barry King, director of range operations for Alaska Aerospace, in a March 20 email. “No other details can be provided until after launch.”

King did state that the launch would be suborbital and that, being a commercial launch, would require a launch license from the Federal Aviation Administration’s Office of Commercial Space Transportation. No launch licenses for any vehicles operating from Alaska are included on a publicly available list of active licenses maintained by the FAA, although it is not uncommon for such licenses to be issued shortly before a scheduled launch.

A local newspaper, the Kodiak Daily Mirror, also reported the launch plans, but gave a launch window of April 6-13, a timeframe stated in an earlier Coast Guard notice superseded by the March 14 notice. Craig Campbell, chief executive of Alaska Aerospace, told the newspaper the upcoming flight was “the first truly commercial launch” in the spaceport’s history but did not reveal the customer.

One possibility is that the launch is being performed by a little-known startup company known as Astra Space. Alaska Aerospace signed a contract with Astra Space in 2017 to support launches of that company’s vehicle from PSCA, according to the minutes of an Alaska Aerospace board of directors meeting in August 2017.

Alaska Aerospace “has a contract with Astra to support the first four launches of their small liquid fuel commercial launch vehicle from PSCA. The first launch is planned for December 2017,” the minutes state. It added that it would be the first liquid-propellant launch from the spaceport, which previously had hosted only solid-fuel rockets. “This will be a very innovative launch.”

Minutes from a Nov. 2 meeting of the Alaska Aerospace board stated that “Astra is moving forward” with plans, holding weekly planning teleconferences and paying a $100,000 deposit for a launch date. That launch was planned at that time for “possibly February or later.”

Astra Space has operations in Alameda, California, where it leases a building from the city in an area that formerly hosted a naval air station. The company was originally known as Ventions and worked on a number of propulsion and other technologies under contracts with NASA and DARPA before reincorporating as Astra Space in 2016. The company’s chief executive is Chris Kemp, a former NASA chief technology officer who has been involved with several technology companies since leaving the agency in 2011.

“Astra Space designs, tests, manufactures, and operates next-generation launch services that will enable a new generation of global communications, earth observation, precision weather monitoring, navigation, and surveillance capabilities,” a document describing the city’s lease of a building to the company states. That work includes development of a rocket called Astra that is 12 meters tall and capable of placing 100 kilograms into low Earth orbit, according to a presentation attached to the lease information.

The company goes by the name Stealth Space Company in some job listings. “We believe that space is the ultimate high ground, and we are on a mission to provide routine access to earth orbit for the entrepreneurs and enterprises that are launching a new generation of services powered by small satellites that will connect, observe, and influence our planet,” states the company description on those listings.

In February, a rocket belonging to the company was spotted on the tarmac at the naval air station by a helicopter from San Francisco television station KGO-TV. The rocket appeared to be undergoing ground tests, but the company provided few details about its activities.

Alaska Aerospace has been working for years to attract new users to the spaceport, formerly known as the Kodiak Launch Complex. The launch site last hosted an orbital launch in 2011, when a Minotaur 4 launched the TacSat-4 satellite for the Operationally Responsive Space Office. A failed U.S. Army missile test in August 2014 damaged the spaceport’s facilities, which were repaired and rededicated two years later.

At least one other company developing a small launch vehicle is interested in launching from PSCA. Tucson, Arizona-based Vector announced Feb. 15 that it plans to carry out the first orbital launch of its Vector-R rocket from the spaceport no earlier than July. That vehicle is still in development with additional tests planned before its orbital debut.

This story was provided by SpaceNews, dedicated to covering all aspects of the space industry.

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Astronauts Serve as Earth’s Storytellers in National Geographic’s ‘One Strange Rock’ [bestandroiddoubledinheadunit950.blogspot.com]

Flat-Earther Blasts Himself into the Sky on Homemade Rocket (and He Survives) [bestandroiddoubledinheadunit950.blogspot.com]

Flat-Earther Blasts Himself into the Sky on Homemade Rocket (and He Survives) [bestandroiddoubledinheadunit950.blogspot.com]

A flat-Earth conspiracy theorist named Mike Hughes finally lifted off our spherical planet’s surface into the skies aboard a self-made, steam-powered rocket Saturday (March 24).

“Mad” Mike believes, of course mistakenly, that the Earth is flat, and his plan since November 2017 has been to launch himself upwards of 1,800 feet, with the goal of making it high enough to prove the planet’s flatness, though that’s down the line, he has said.

In a video by Noize TV (which contains explicit language) yesterday, Hughes is seen stepping into the top cone of the rocket, with his helmet-covered head facing the heavens, the desert mountains in the background. The rocket was nestled into scaffolding attached to Hughes’ “Flat Earth” plastered truck.  

The launch comes after two failed attempts — one was canceled after the Bureau of Land Management caught wind of his plans to shoot the rocket from public lands and promptly shut him down; and in another attempt on Feb. 3, the flat-Earther’s rocket never left the pad (on private land). (Noise TV livestreamed the painful-to-watch 11-minute event.)

This time, Hughes, a 61-year-old limo driver, crafted a ramp from a mobile home so that he could launch from a vertical angle that would allow him to return to Earth on private land owned by Albert Okura. In Saturday’s success, the rocket took off straight into the air, reaching 1,875 feet (572 meters) above the Mojave Desert near Amboy, California, before making a “hard landing which sheared off the nose cone,” he posted on his Facebook page.

The cone, with Hughes inside, fell back to Earth attached to a parachute. He was dropping at 350 mph (560 km/h) before pulling his parachute; that wasn’t enough to slow him to a reasonable speed, and so Hughes had to pull a second parachute before crashing into the desert, as seen in the Noize TV livestream.

Upon landing, he told the Associated Press that aside from an aching back, he was fine, and “relieved,” adding “I’m tired of people saying I chickened out and didn’t build a rocket. I’m tired of that stuff. I manned up and did it.”

The mission looked like it was going to be aborted, due to the high winds and the fact that his rocket was losing steam. As reported by the AP, for maximum thrust, the steam pressure should reach 350 psi and before the launch, it was dropping to 340 psi.

“I told Mike we could try to keep charging it up and get it hotter,” said Waldo Stakes, who was helping Hughes with the mission. “He said, ‘No,'” the AP reported.

His ultimate goal? Hughes reportedly wants to build what he’s calling a Rockoon, or a rocket that hitches a ride into the air aboard a gas-filled balloon. The rocket would then separate and take Hughes to an altitude of 68 miles (110 kilometers), where he could then take pictures to prove the flatness of the Earth, according to the AP. One can see Earth’s curvature starting at an altitude of about 6.6 miles, or 35,000 feet (10,700 m).

“Do I believe the Earth is shaped like a Frisbee? I believe it is,” he said in an earlier video posted to his Facebook page. “Do I know for sure? No. That’s why I want to go up in space.”

Of course, there are plenty of ways to prove the Earth is a sphere without launching oneself into space, as Live Science has laid out previously.

Originally published on Live Science.

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[bestandroiddoubledinheadunit950.blogspot.com]Flat-Earther Blasts Himself into the Sky on Homemade Rocket (and He Survives)

Unlikely Duo Teams Up for ‘One Strange Rock’: Q&A with Chris Hadfield and Darren Aronofsky [bestandroiddoubledinheadunit950.blogspot.com]

In Photos: Tiangong-1, China’s Space Station That’s Falling to Earth [bestandroiddoubledinheadunit950.blogspot.com]

Exos Aerospace Prepares for First Suborbital Launch [bestandroiddoubledinheadunit950.blogspot.com]

Chinese Space Station’s Crash to Earth: Everything You Need to Know [bestandroiddoubledinheadunit950.blogspot.com]

NASA’s Curiosity Rover Just Spent Its 2,000th Day on Mars! [bestandroiddoubledinheadunit950.blogspot.com]

Trump’s New National Space Strategy emphasizes ‘America First’ Policies [bestandroiddoubledinheadunit950.blogspot.com]

Trump’s New National Space Strategy emphasizes ‘America First’ Policies [bestandroiddoubledinheadunit950.blogspot.com]

WASHINGTON — A new National Space Strategy announced by the White House March 23 fits into an “America First” theme of the Trump administration, seeking to protect American interests in space through revised military space approaches and commercial regulatory reform.

The strategy was announced in a statement released by the White House. The strategy document itself has not been released, and an administration source says the release is intended to serve as the primary fact sheet for the strategy.

The statement says the strategy is intended to outline how the administration will protect American interests in space, fitting into a broader “America First” theme of policies by the current administration. [From Ike to Trump: Presidential Visions for Space Exploration]

“President Trump’s National Space Strategy works within his broader national security policy by putting America’s interests first,” the statement reads. “The Trump administration’s National Space Strategy prioritizes American interests first and foremost, ensuring a strategy that will make America strong, competitive, and great.”

The strategy features four “essential pillars” that constitute “a whole-of-government approach to United States leadership in space, in close partnership with the private sector and our allies,” according to the document.

Three of those pillars are related to national security activities in space, including a shift to more resilient space architectures, strengthening deterrence and warfighting options in space, and improving “foundational capabilities, structures, and processes” that include space situational awareness, intelligence and acquisition issues.

The document emphasizes the threats that American space assets face, an issue that predates the administration. “President Trump’s National Space Strategy recognizes that our competitors and adversaries have turned space into a warfighting domain,” the document states, echoing language that Trump himself used in a March 13 speech where he also suggested the creation of a “space force.” The strategy itself does not endorse or discuss that issue.

“The strategy affirms that any harmful interference with or attack upon critical components of our space architecture that directly affects this vital interest will be met with a deliberate response at a time, place, manner, and domain of our choosing,” the release states. [In Photos: President Trump and NASA]

The fourth pillar of the document is devoted to developing “conducive” environments for working with commercial and international partners. “We will streamline regulatory frameworks, policies, and processes to better leverage and support U.S. commercial industry, and we will pursue bilateral and multilateral engagements to enable human exploration, promote burden sharing and marshal cooperative threat responses,” the release states.

The administration had already been moving to streamline commercial space regulatory issues. The National Space Council, at its most recent meeting Feb. 21, endorsed several recommendations on topics ranging from launch licensing to enhancing the role of the Office of Space Commerce within the Department of Commerce.

While the strategy backs cooperation with international partners, it also emphasizes that the U.S. will do so only on terms the administration deems favorable. “The new strategy ensures that international agreements put the interests of American people, workers, and businesses first,” the document states.

The release says little on civil space activities beyond stating the strategy is “laying the groundwork for the next generation of American exploration in space.” It does note the signing of Space Policy Directive 1 by President Trump in December. That directive modified existing national space policy, issued by the Obama administration in 2010, to make a human return to the moon a goal for NASA’s human spaceflight program, while maintaining human missions to Mars as a long-term goal.

The National Space Council discussed the development of a National Space Strategy, part of a broader national security strategy, at its first two public meetings. At the second meeting Feb. 21, H. R. McMaster, the national security advisor, discussed the “important progress” made to develop the space strategy. That included the development of four “interrelated lines of effort” that match the pillars listed in the March 23 release.

“The strategy will not only advance the benefits of space for ourselves, but also ensure the peoples of all nations can benefit from the tremendous potential that space offers,” McMaster said at that meeting, chaired by Vice President Mike Pence. “With your endorsement, Mr. Vice President, and the president’s approval, we are prepared to begin implementing this national strategy for space and periodically access progress and recommend adjustments to you and the council and the president,” he said.

McMaster, though, will not be able to provide those updates. President Trump announced March 22 that McMaster would be stepping down as national security advisor effective April 9, to be replaced by John Bolton, former U.S. ambassador to the United Nations during the George W. Bush administration.

This story was provided by SpaceNews, dedicated to covering all aspects of the space industry.

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Wednesday, March 28, 2018

Omega Reveals ‘Dark Side of the Moon’ Chronograph for Apollo 8 50th [bestandroiddoubledinheadunit950.blogspot.com]

NASA Receives $20.7 Billion in Omnibus Appropriations Bill [bestandroiddoubledinheadunit950.blogspot.com]

NASA Receives $20.7 Billion in Omnibus Appropriations Bill [bestandroiddoubledinheadunit950.blogspot.com]

WASHINGTON — A final fiscal year 2018 spending bill released by House and Senate appropriators March 21 would give NASA more than $20.7 billion, far above the administration’s original request.

The omnibus spending bill, completed after weeks of negotiations, restores funding for Earth science and education programs slated for cancellation by the White House and includes additional money for the agency to build a second mobile launch platform for the Space Launch System.

The appropriations bill gives NASA $20.736 billion for the 2018 fiscal year, which started more than five and a half months ago. That is more than $1.6 billion above the administration’s original request of $19.092 billion. A House appropriations bill offered NASA $19.872 billion and its Senate counterpart $19.529 billion. An overarching two-year budget deal reached earlier this year raised spending caps for both defense and non-defense programs, freeing up additional funding. [From Ike to Trump: Presidential Space Visions Through History]

Appropriators used that additional funding to, in part, restore programs slated for cancellation in the original request. Four of the five Earth science programs the administration sought to cancel — the Plankton, Aerosol, Cloud, and ocean Ecosystem (PACE) mission, the CLARREO Pathfinder and Orbiting Carbon Observatory 3 instruments and the Earth observation instruments on the Deep Space Climate Observatory spacecraft — are explicitly funded in the request. A fifth program, the Radiation Budget Instrument, was already cancelled by NASA earlier this year because of technical and programmatic issues.

The budget also provides $100 million for NASA’s education program, which the administration had sought to close down. That proposal received wide bipartisan criticism in the House and Senate last year, whose appropriations bills restored funding. The Restore-L satellite servicing mission, which the administration sought to convert into a more general, and much smaller, technology development program, receives $130 million in the bill.

The White House once again seeks to shutter NASA’s education program in its fiscal year 2019 request, along with the same Earth science missions targeted for cancellation in the 2018 request.

NASA’s Wide Field Infrared Survey Telescope (WFIRST), another mission slated for cancellation in the 2019 budget request, received $150 million in the 2018 omnibus bill. The report accompanying the bill makes no reference to the proposed cancellation but does direct NASA to provide to Congress a lifecycle cost estimate for the mission within 60 days, including any additions needed to make it consistent with a “class A” risk classification, as identified in an independent review of the program last fall.

NASA’s James Webb Space Telescope receives $533.7 million, the exact amount requested by the administration. As in past years, the bill includes language directing NASA to treat any increase as meeting a 30 percent under federal law. That law requires NASA to both provide a report on the size and cause of the overrun as well as prohibiting spending on it starting 18 months later unless authorized to continue by Congress. NASA officials said March 20 that a determination of any breach of the program’s $8 billion cost cap caused by further delays in its development could be announced as soon as next week.

The agency’s planetary science program received more than $2.2 billion in the bill, an increase of $300 million over the request. It includes $595 million to continue work on the Europa Clipper mission and follow-on lander, and retains provisions from prior bills calling on using the SLS for launching Europa Clipper by 2022 and the lander by 2024. The report also provides $23 million for a proposed helicopter NASA is considering including on the Mars 2020 rover mission.

NASA’s exploration programs also win additional funding in the bill, with the omnibus providing $2.15 billion for SLS and $1.35 billion for Orion, the same levels as in both the House and Senate bills but above the original request.

The bill includes $350 million to build a second mobile launch platform. NASA considered, but did not request, funding in its 2019 proposal for a second platform, which outside advisers said could shorten the gap between the first and second SLS missions by avoiding delays caused by modifying the platform to accommodate the larger version of the SLS used on second and subsequent missions.

The House is expected to take up the full omnibus bill on March 22, followed immediately after by the Senate. The government is currently operating on the latest in a series of stopgap funding bills, known as continuing resolutions, that expires March 23.

Fiscal Year 2018 Budget Table (all values in millions of dollars)
Account FY18 Request House CJS Senate CJS Omnibus
Science $5,711.8 $5,858.5 $5,571.8 $6,221.5
-Earth Science $1,754.1 $1,704.0 $1,921.0 $1,921.0
-Planetary Science $1,929.5 $2,120.9 $1,611.9 $2,227.9
-Astrophysics $816.7 $822.0 $816.7 $850.4
-JWST $533.7 $533.7 $533.7 $533.7
-Heliophysics $677.8 $677.9 $688.5 $688.5
Space Technology $678.6 $686.5 $700.0 $760.0
Aeronautics $624.0 $660.0 $650.0 $685.0
Exploration $3,934.1 $4,550.0 $4,395.0 $4,790.0
-SLS $1,937.8 $2,150.0 $2,150.0 $2,150.0
-Orion $1,186.0 $1,350.0 $1,350.0 $1,350.0
-Ground Systems $460.4 $600.0 $545.0 $895.0
-Exploration R&D $350.0 $450.0 $350.0 $395.0
Space Operations $4,740.8 $4,676.6 $4,751.5 $4,751.5
Education $37.3 $90.0 $100.0 $100.0
Safety, Security and Mission Services $2,830.2 $2,826.9 $2,826.9 $2,826.9
Construction $496.1 $486.1 $496.1 $562.2
Inspector General $39.3 $37.9 $38.0 $39.0
Total $19,092.2 $19,871.8 $19,529.3 $20,736.1

This story was provided by SpaceNews, dedicated to covering all aspects of the space industry.

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Stephen Hawking’s Last Paper (Probably) Doesn’t Prove We Live in a Multiverse [bestandroiddoubledinheadunit950.blogspot.com]

Stephen Hawking’s Last Paper (Probably) Doesn’t Prove We Live in a Multiverse [bestandroiddoubledinheadunit950.blogspot.com]

A few months before physicist Stephen Hawking died, he co-authored a paper that several media outlets touted as a way to finally prove (or disprove) the existence of parallel universes.

But that claim may be a bit of cosmic inflation, said several physicists who were not involved in Hawking’s research.

“The paper makes no statements about observational tests. It’s not entirely uninteresting, but it’s one of literally several thousand ideas for what might possibly have happened in the early universe,” many of which include parallel worlds, said Sabine Hossenfelder, a physicist at the Frankfurt Institute for Advanced Studies in Germany, who blogs at backreaction.blogspot.com. [The 18 Biggest Unsolved Mysteries in Physics]

The as-yet-unpublished study, by Hawking and Thomas Hertog, a physicist at the Catholic University Leuven (KU Leuven) in Belgium, first appeared in the preprint journal arXiv in July 2017 and was revised just a week before Hawking passed away. The study is an attempt to isolate the types of universes predicted by one of Hawking’s unproven theories, the “no boundary” model to explain the Big Bang.

However, it relies on several speculative and unproven theories and uses them in bold ways to make vague conclusions, said Frank Wilczek, a Nobel laureate and theoretical physicist at MIT.

The roots of the paper go back to one of Hawking’s best-known, yet unproven theories: the “no boundary proposal” to explain the Big Bang. According to Einstein’s theory of general relativity, before the Big Bang, there must have been a singularity, or an infinitely dense, extremely hot speck of matter for which the laws of physics break down.

In this conception, which was formulated with University of California, Santa Barbara physicist James Hartle, this singularity was one in both space and time ­— meaning that before the Big Bang, time as we know it didn’t exist. Try to visualize the universe in time then, and it is as if it had no boundary — like a globe that can be traversed over and over without reaching an edge.

As scientists analyzed the idea, they realized that Hawking’s no-boundary theory predicts that this baby universe, as it inflated super fast, would pop off other universes and ultimately an entire multiverse. In fact, Hawking’s theory ultimately posited that our humble universe is just one of infinitely many parallel universes that exist in this infinite, fractal-like multiverse. This multiverse would then lead to a paradox: Because there would be an infinite number of universes, no one would be able to make any testable predictions about the particular universe we happen to live in, Hertog said. (With an infinite number of possibilities, anything becomes possible, and no particulars about a universe could be determined.) [Top 5 Reasons We May Live in a Multiverse]

“Hawking was not satisfied with this state of affairs,” Hertog told Live Science in an email. “‘Let’s try to tame the multiverse,’ he told me a year ago. So we set out to develop a method to transform the idea of a multiverse into a coherent testable scientific framework.”

To cut down the infinite number of parallel worlds, the researchers had to find a bridge between the quantum physics that dominated the teensy-tiny singularity of the fetal universe and the classical laws that govern the big universe we all live in. In the new study, Hawking and Hertog used a method known as holography to unite the two sets of ideas. By doing so, they were able to cut this vast forest of multiverses into a countable number. Once they were working with a finite number of universes, they could make predictions about what these universes would look like, Hertog said.

For instance, “they find that universes which are smooth and like our own, basically, are probable,” Hossenfelder told Live Science.

Hawking’s no-boundary theory posits that after the Big Bang, the universe went through a burst of rapid expansion called cosmic inflation, amplifying the primordial gravitational waves that emanated from the Big Bang, Hertog said. This ancient echo of the universe’s birth is recorded in the faint, cold microwave radiation that permeates every region of our universe, known as cosmic microwave background radiation (CMB). If future satellites show that the energy signal in the CMB data matches the inflation predicted by Hawking’s model, it could conceivably provide strong evidence for the existence of a multiverse, Hertog said.

But other scientists are skeptical. There are other models of inflation, and most of these models also include some primordial gravitational waves, said Katie Mack, a cosmologist at North Carolina State University who was not an author on the new paper.

“The ideas brought up in this paper are not giving any new kind of signature that’s different from other models of inflation,” Mack told Live Science.

In other words, there’s no way for CMB data to reveal whether Hawking’s theory, or one of thousands of others, is right.

On the other hand, if the CMB signals do not match Hawking and Hertog’s predictions, “that would falsify the very specific set of assumptions and approximations used in the paper,” Wilczek told Live Science in an email. “So it’s testable in that very weak sense,” he added.

What’s more, Hawking and Hertog relied on a mathematical framework to connect quantum theory and gravity, but that framework relies on a number of unproven conjectures and is, essentially, not complete, Mack told Live Science.

“What they’ve done in this paper is to use what they call a toy model — it’s not fully rigorous and complete,” Mack said. “They admit that there’s a lot more work to be done.”

Before anyone can say that this paper is valid, scientists need to have a better theoretical understanding of quantum gravity, Mack said, referring to a unified theory that unites both quantum mechanics and gravity as described by Einstein’s theory of relativity.

Originally published on Live Science.

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Watch a Robot Solve a Rubik’s Cube in 0.38 Seconds [bestandroiddoubledinheadunit950.blogspot.com]

A robot built at MIT has reportedly set a world speed record for solving a Rubik’s Cube, cutting the previous record of 0.637 seconds (set by another robot in 2016) down to just 0.38 seconds. If robots had grandparents, this one’s would be very proud.

The Rubik’s-solving robot was constructed at MIT this January by Ben Katz, a mechanical engineering graduate student, and Jared Di Carlo, an electrical engineering and computer science student, at a student-run hacker lab. According to a news release from MIT, the two became inspired when they noticed a design flaw in footage of the previous robot record-holder, a compact sphere of whirling motors created by German engineer Albert Beer. [Super-Intelligent Machines: 7 Robotic Futures]

“We watched the videos of the previous robots, and we noticed that the motors were not the fastest that could be used,” Di Carlo said in a statement. “We thought we could do better with improved motors and controls.”

In their new speed-solving bot, Katz and Di Carlo engineered individual motors to control six metal rods gripping the cube’s six faces. Two webcams send footage of the cube to a nearby computer, helping the robot identify which colors fall on which face of the cube at a given time. Working from this information, the robot solves the cube with an algorithm previously used in other Rubik’s-solving robots.

In the video above, you can see the whole process in action — just don’t blink.

While our fleshy human fingers cannot hope to best the whirling motors and metal grips of robots like these, professional human speedcubers have set some pretty mind-boggling speed records of their own. The current world speed record for solving a Rubik’s Cube is held by SeungBeom Cho, who solved a jumbled cube in 4.59 seconds at a 2007 World Cube Organization competition. According to the Rubik’s Cube community Ruwix.com, Cho beat the previous world record by just one-tenth of a second.

Members of the machine uprising resistance movement, take heart: Although robots may be much faster than humans at solving Rubik’s cubes, flipping hamburgers and climbing up sheer vertical walls, they still look ridiculous trying to open doors.

Originally published on Live Science.

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Scarlett Moffatt weight loss: Ant McPartlin host looks very slim after DVD ‘fake’ claims [bestandroiddoubledinheadunit950.blogspot.com]

Scarlett Moffatt weight loss: Ant McPartlin host looks very slim after DVD ‘fake’ claims [bestandroiddoubledinheadunit950.blogspot.com]

Scarlett Moffatt, 27, rose to fame on Gogglebox, and now co-hosts Saturday Night Takeaway with Ant McPartlin and Dec Donnelly, known as Ant and Dec.

The TV star has been open with her battle with health and weight loss, and released her own weight loss DVD, Scarlett’s SuperSlim Me Plan.

Scarlett Moffatt’s weight loss totted up to an impressive number of pounds lost. 

Speaking to Heat magazine, she said: “I’ve lost 3st 4lb, and that’s roughly what my three-year-old cousin Noah weighs. It’s like I’ve been piggy backing Noah for years and I’ve just dropped him off at school.”

She added: “I’m getting really positive comments now, which is amazing. But when I was at my biggest, I did get bad comments from trolls. It annoyed me that I didn’t have a comeback.”

Scarlett shrunk from a size 16 to a size 10 in 14 weeks, and her bust lost seven inches, taking her from a J-cup to a DD.

However, there have been some claims that Scarlett Moffatt’s weight loss DVD is causing her some grief, and she has been asked to pay £100,000 to the producers of the DVD. 

The Sun on Sunday claimed the company is asking for their money back after she regained the weight.

The newspaper also states that she secretly attended a gruelling boot camp in Switzerland in order to lose weight for the DVD.

They claim that she followed a “starvation” diet of 700 calories a day and was “pushed to breaking point,” with a source calling the DVD a “sham”.

In December the star posted a message to her Instagram account warning girls not to be fooled by the perfect images they see on the app.

She wrote: “To all you young girls (and older ladies) out there don’t believe all you see on social media.

“This goes to show what make up and a filter can do love who you are and don’t compare yourself to anybody else.” [sic]

On Instagram five months ago Scarlett wrote: “Going to get back on the fitness train to get myself back to this, been so busy lately I’ve fell out of a good routine.

She added: “Superslim me dvd is getting hammered in Australia.” [sic]

What is Scarlett Moffat’s net worth? 

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[bestandroiddoubledinheadunit950.blogspot.com]Scarlett Moffatt weight loss: Ant McPartlin host looks very slim after DVD ‘fake’ claims

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A Hungry Black Hole Devoured a Star, and Its ‘Burp’ Reveals How It Chowed Down [bestandroiddoubledinheadunit950.blogspot.com]

A black hole that’s gobbling down a stellar meal is providing insight into how black holes devour matter and affect the evolution of galaxies. 

Researchers found that the X-ray signal burst caused when a black hole shredded a passing star was repeated in the radio wavelengths nearly two weeks later. The radio echo most likely came from an exodus of highly energetic particles streaming out of the black hole, the researchers said.

In 2014, Las Cumbres Observatory’s All-sky Automated Survey for Supernovae, a collection of robotic telescopes spread across the globe, picked up signals from 300 million light-years away. The event, known as ASASSN-14li, occurred as a star was ripped to shreds after passing too close to a black hole. Multiple telescopes immediately turned to track the tidal disruption flare, a powerful explosion of electromagnetic energy caused by the destruction. After poring through about six months’ worth of data, Dheeraj Pasham, a researcher at the Massachusetts Institute of Technology, and Sjoert van Velzen, of Johns Hopkins University, found a pattern in the radio wavelength that nearly duplicates the X-ray signal. [No Escape: Dive Into a Black Hole (Infographic)]

“This is telling us the black hole feeding rate is controlling the strength of the jet it produces,” Pasham said in a statement. “A well-fed black hole produces a strong jet, while a malnourished black hole produces a weak jet or no jet at all. This is the first time we’ve seen a jet that’s controlled by a feeding supermassive black hole.”

When a star passes too close to a black hole, the enormous mass of the black hole exerts a tidal tug on the star. The forces are so strong that they can stretch and flatten the star, eventually tearing it to pieces. The stellar debris falls toward the black hole, where it is caught in the accretion disk, the collection of material that feeds the black hole. This is what happened in the case of ASASSN-14li.

The feeding process generates enormous energy visible in multiple wavelengths. Flares have been observed around other black holes in optical, ultraviolet, X-ray and radio wavelengths. As ultrahot material in the innermost regions of the accretion disk funnels toward the black hole, it produces X-ray emissions, while material farther out produces optical and ultraviolet emission. The source of radio emissions, however, has remained unknown.

“We know that the radio waves are coming from really energetic electrons that are moving in a magnetic field — that is a well-established process,” Pasham said. “The debate has been, where are these really energetic electrons coming from?”

One possibility is that, in the moments following the stellar explosion, a shock wave moves outward, energizing the plasma particles and causing them to emit radio waves. These radio waves would look dramatically different from the pattern of X-rays created by the infalling stellar material. But the signal Pasham and Van Velzen found in the radio is a 90-percent match with the X-ray signal.

“What we found basically challenges this paradigm,” Pasham said.

The close match suggests that the sources responsible for creating the radio waves and X-rays are related.

“It’s not a coincidence that this is happening,” Pasham said. “Clearly there’s a causal connection between this small region producing X-rays and this big region producing radio waves.”

The pair proposes that the radio waves are created by high-energy particles streaming out of the black hole soon after the behemoth begins to absorb material from the shredded star. Because the radio waves formed in a region tightly packed with other electrons, most of the signal was absorbed by those particles, the researchers said. The electrons responsible for the radio signal could escape only when they traveled downstream of the jet, producing the signal the scientists detected. 

The researchers concluded that the strength of the jet must be controlled by the accretion rate, or the speed at which the black hole is consuming the stellar debris responsible for emitting X-rays.

The new observations, which were published March 19 in The Astrophysical Journal, may help scientists better characterize the physics of jet behavior. This, in turn, may help improve researchers’ understanding of how galaxies evolve.

Galaxies grow by producing new stars, but they can only do so under very cold temperatures. Jets emitted by black holes heat up the surrounding galaxies, temporarily halting stellar births. Pasham said the team’s new insight into jet production and black-hole accretion may help to simplify models of galaxy evolution.

“If the rate at which the black hole is feeding is proportional to the rate at which it’s pumping out energy, and if that really works for every black hole, it’s a simple prescription you can use in simulations of galaxy evolution,” Pasham said. “So this is hinting toward some bigger picture.”

Follow Nola Taylor Redd at @NolaTRedd, Facebook, or Google+. Follow us at @Spacedotcom, Facebook or Google+. Originally published on Space.com.

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‘Virtual Particles’ Could Create Dark, Echoing Dead Stars [bestandroiddoubledinheadunit950.blogspot.com]

There might be a massive, dead star out there that bends the stuff of raw vacuum and prevents itself from collapsing into a black hole.

That’s the conclusion of a new paper published in the journal Physical Review Letters in early February, which provides the first thorough theoretical framework for understanding objects called “gravastars” and “black stars.” These are ultradense, collapsed stars, like the more famous black holes. But unlike black holes, gravastars and black stars don’t become so dense that they form event horizons, the border beyond which light cannot escape.

That’s thanks to a phenomenon known as “quantum vacuum polarization.”

Here’s how it works:

There’s a principle in quantum mechanics, as Live Science has reported previously, that empty space isn’t really empty, but instead populated with “virtual particles.” These particles are artifacts of the fact, described by quantum mechanics, that physics is governed more by probabilities than fixed realities. Because of the small possibility that a particle might exist in any one empty point in space, that empty point in space acts as if the particle is sort of, kind of there.

And those virtual particles have real effects on the world. Mostly, they’re pretty small and easy to ignore. But in the extreme cases described in this paper, the particles hiding inside a heavy, collapsed star would “polarize,” orienting themselves in a way that keeps them from getting too close to one another. They would form a kind of scaffolding that keeps the star from crunching too small and becoming a black hole.

However, just because the paper describes a situation in which such stars might exist, that doesn’t mean they’re out there, researchers said.

Erin Bonning, director of the planetarium at Emory University in Atlanta, who wasn’t involved in the study, told Ryan Mandelbaum of Gizmodo that the paper relies on some simplifications and assumptions of how astrophysics works, and that it’s possible — even likely — that such objects would never emerge in the more complicated terrain of the real universe.

However, if they do exist, we might have a way to detect them: by their gravitation waves. These ripples in space-time happen during violent cosmic events, when super-hefty objects accelerate or decelerate really quickly.

Charles Q. Choi spoke to theoretical physicist Paolo Pani of Sapienza University of Rome for Scientific American, who said that the gravitational waves created by interacting horizonless, collapsed stars — those gravastars and black stars — would look different than gravitational waves from black holes. While black holes absorb any waves that crash back into them, a horizonless star would reflect those waves, meaning that the gravitational waves would have a faint echo, Pani said.

Originally published on Live Science.

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Weight loss: How to lose a stone easily without really trying – expert reveals all [bestandroiddoubledinheadunit950.blogspot.com]

Weight loss: How to lose a stone easily without really trying – expert reveals all [bestandroiddoubledinheadunit950.blogspot.com]

Weight loss is hard, but this diet plan can help Britons to shed a stone in just over half a year, and to keep it off for good.

Making healthy swaps will see you eat 250 fewer calories per day, without even noticing.

A nutritionist from Nutracheck, Emma Brown, has devised an easy way to lose weight without a strict diet plan.

She said: “If you eat fewer calories than you burn off, you will lose weight. It’s that simple. It can be a combination of eating less and exercising a bit more, or just eating less – it’s up to you.

“Just by ditching 2 biscuits a day – or a bag of crisps – and taking a lunchtime walk will save you around 250 calories every day. Keep it up for a week and you’ll lose half a pound without really trying.”

Emma claims by dropping just one small item a day you can make a huge difference.

Foods to drop

Two bourbon biscuits (130 cals)

Bag of Walkers crisps (25g) (130 cals)

Can of cola (135 cals)

Curly Wurly (or similar) (120 cals)

1 sugar in your tea (5 mugs – saves 130 cals)

Emma adds that you should then add 30 minutes of walking to your day, which burns 120 calories.

Combined this means that you burn around 250 total calories more per day, equating to 0.5lbs per week.

She added: “Emma said: “This is all about getting used to making some really easy, small changes that will have a real impact on your weight loss goals.

“You can scale it up by increasing the amount of walking or exercise you do.”

“If you want to get more scientific about it by checking calories in some other of your favourite foods, using a calorie tracking App is really handy. You can scan barcodes to track what you eat and ensure you are getting the energy balance right to lose weight successfully.

“Whatever method you choose, it’s a positive step towards longer term weight loss goals.”

Doing one thing twice a week could be the key to losing weight, according to some experts.

Restricting your calories on just two days of the week with the 5:2 diet has a quicker weight loss effect than cutting calories every day. 

People on the 5 2 diet, where you eat normally for five days and consume a low number of calories (around 600) on two days, are said to drop pounds faster

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Vernal Equinox 2018: Satellite Sees First Day of Spring [bestandroiddoubledinheadunit950.blogspot.com]

Monday, March 26, 2018

Orbital ATK Unveils New Version of Satellite-Servicing Vehicle [bestandroiddoubledinheadunit950.blogspot.com]

Orbital ATK Unveils New Version of Satellite-Servicing Vehicle [bestandroiddoubledinheadunit950.blogspot.com]

WASHINGTON — Orbital ATK announced March 13 it is developing a new version of a satellite life extension vehicle intended to provide more flexibility to customers while also moving the company closer to more advanced in-space servicing.

During a presentation at the Satellite 2018 conference here, company executives announced plans to develop the Mission Robotic Vehicle and Mission Extension Pods, which would handle stationkeeping for geostationary satellites that are running out of fuel.

The new systems are based on the Mission Extension Vehicle (MEV), a satellite life extension vehicle that Orbital ATK currently offers. The MEV docks with a satellite and takes over maneuvering of that satellite, including stationkeeping as well as relocation and disposal into graveyard orbits.

Under the new approach, a Mission Robotic Vehicle, based on the MEV design, will carry 10 to 12 Mission Extension Pods. The Mission Robotic Vehicle would approach a customer’s satellite and use a robotic arm to attach a pod to that satellite. The pod would then take over stationkeeping, proving up to five years of additional life.

The Mission Robotic Vehicle and Mission Extension Pods are intended to provide new solutions to customers that don’t need the full-fledged capabilities of the MEV. The pods have a shorter lifetime than an MEV and do not provide attitude control capabilities.

The new system, designed to be ready for service in 2021, largely incorporates existing technology. The Mission Robotic Vehicle is a version of the MEV and the Mission Extension Pods is based on Orbital ATK’s ESPASat small satellite bus.

One new technology will be the robotic arm. Tom Wilson, president of SpaceLogistics, the Orbital ATK subsidiary offering the satellite life extension program, said the company was considering technology from NASA as well as Europe. “We’ve got a couple of different options,” he said, but hasn’t yet made a decision on the specific technology.

The robotic arm and pod technologies open the door to do more sophisticated servicing in the future. Wilson said that pods could carry other technologies, such as alternative communications payloads, to be installed on host satellites, while the arm could use tools to perform basic repairs.

“It’s really leading us down that roadmap of incremental technology maturation,” Wilson said, leading to capabilities like “real on-orbit repair or assembly.”

Orbital ATK announced the new satellite servicing approach during a time where there is growing interest in satellite life extension, as well as growing competition. Effective Space Solutions is developing its Space Drone spacecraft that will provide similar life-extension capabilities, while Space Systems Loral (SSL) is working on the Robotic Servicing of Geosynchronous Satellites program with the Defense Advanced Research Projects Agency, developing a vehicle capable of refueling and repairing GEO spacecraft.

Satellite operators, once wary of such services, are becoming more interested in ways to extend the lives of their satellites. “I think the time really now has come for in-orbit servicing due to the confluence of several important factors,” said David Thompson, president and chief executive of Orbital ATK. Satellite operators are increasingly “capital limited,” he said, a situation exacerbated by uncertainties created by new technologies like high-throughput satellites and non-geostationary orbit satellite constellations.

“The opportunity to continue to support their customers and to generate revenue for their companies by leveraging existing assets in space is highly relevant at this point,” he said.

Orbital ATK has not announced any customers for this new system, but has sold two MEVs to Intelsat, the first of which is scheduled to launch late this year. That MEV will dock with the Intelsat-901 satellite and move it to another orbital slot. The second MEV, planned for launch in early 2020, will dock with another, unnamed Intelsat satellite and take over stationkeeping at its current location.

“Servicing in space  is something that we’ve been looking at for a while,” said Stephen Spengler, chief executive of Intelsat. “The time is right. We looked at some earlier solutions that weren’t quite mature enough.”

Intelsat had, in 2011, announced an agreement with MacDonald, Dettwiler and Associations (MDA) for servicing its satellites, but dropped the agreement less than a year later after other government and commercial customers failed to sign up for the proposed system. MDA is now part of Maxar Technologies, which also owns SSL.

Spengler said he was interested in future servicing capabilities beyond life extension, such as repair. “We are open to doing whatever is best to enable our fleet into the future,” he said.

This story was provided by SpaceNews, dedicated to covering all aspects of the space industry.

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‘Star Wars’ Droids Point the Way to NASA Repair Robots [bestandroiddoubledinheadunit950.blogspot.com]

‘Star Wars’ Droids Point the Way to NASA Repair Robots [bestandroiddoubledinheadunit950.blogspot.com]

The “Star Wars” robots R2-D2 and BB-8 are the droids that NASA is looking for — “astromechs” that can help repair spaceships on the fly, a NASA robotics engineer says.

Future NASA robots might resemble humanoid droids such as C-3PO and K-2SO from the waist up, but have giant mechanical spidery legs from the waist down, the engineer added in a new piece for the journal Science Robotics.

For more than 20 years, NASA has sought to develop robot assistants for astronauts. So far, they have developed three droids. [R2-D2 Gets Real: ‘Star Wars’ Droids Already Exist]

First, NASA developed Robonaut, a humanoid upper body mounted on several different lower bodies, although it was never flown in orbit. Second, they developed the far more advanced Robonaut 2, which made its way to the International Space Station in 2011. Third, in 2013, NASA engineers built Valkyrie, a lighter, full-body humanoid, to explore the potential of bipedal walking on Mars and other planetary surfaces.

However, to explore the full range of possibilities that robots in space can offer, look no further than “Star Wars,” where droids can serve as translators, pilot ships, fight wars, hack enemy computers, ferry secret documents across enemy lines, and even serve drinks. 

“‘Star Wars’ is a common cultural touchstone — say something’s just like R2-D2, and your eyes will light right up,” said W. Kris Verdeyen, a robotics engineer at NASA’s Johnson Space Center in Houston, who wrote about ‘Star Wars’ robots March 14 in Science Robotics. “Now ‘Star Wars’ is a fantasy movie — they take a lot of leeway with the physics, they’re never without gravity — but as a tool to communicate to the public what the potential with robots is, it’s wonderful,” he told Space.com.

Of the most interest to NASA are “astromechs” such as R2-D2 and BB-8, which can keep a spaceship running even as it is being blown apart. “It’d be really nice to imagine a robot crawling on the outside of a space station to repair it,” Verdeyen said. 

Such droids could start off simple. “Even if the robot was really dumb, you could put it on the outside of the space station, and if there’s a hole, it could just put its finger in it until the astronaut fixes it, to give you an idea of how we can get from no capability to ‘Star Wars’ capabilities,” Verdeyen said. 

In the movies, droids act just like robotic Swiss Army knives, nearly always equipped with the right tools for any situation. Although NASA would be hard-pressed to mimic this aspect of astromechs, Verdeyen does note that in tests, NASA’s droids have used drills, surgical equipment and other tools.

“If we make a robot that looks and manipulate tools like a human, it can use tools that already exist for astronauts,” Verdeyen said.

The ability to use human tools is just one reason why NASA droids are more likely to resemble humanoid droids than “Star Wars” astromechs. Another is that, well, rolling droids like R2-D2 and BB-8 are unlikely to fare well in real-life environments.

But the robots that NASA develops for missions to space may also not resemble humanoid droids such as C-3PO and K-2SO, either, Verdeyen added. “It doesn’t make sense to have a bipedal walking robot for zero gee,” he said. “If you look at the legs for Robonaut 2, they’re big, spidery legs, made for climbing around in zero gee.”

Although future NASA droids may not physically resemble “Star Wars” astromechs, when it comes to brains, NASA’s robots would aim for their detailed spacecraft knowledge and real-time problem-solving ability. To reach that level, NASA is exploring what it calls “embedded intelligence,” where robotic bodies are accompanied by an artificial intelligence and knowledge database similar to IBM’s Watson.

“We’re picturing something like Watson on a rack in a spacecraft local to whatever robot or astronaut would need to use it,” Verdeyen said. This computer could then wirelessly control the robot or communicate with the astronaut, he said.

Verdeyen emphasized that NASA’s droids are not coming a long time from now in a galaxy far, far away. “Everybody thinks robots like we see in the movies are far off, and they are, but they’re less far off than they were five or 10 years ago,” he said.

Follow Charles Q. Choi on Twitter @cqchoi. Follow us @Spacedotcom, Facebook and Google+. Original article on Space.com.

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Sunday, March 25, 2018

China Outlines Two-Phase Chang’e 4 Moon Lander Mission [bestandroiddoubledinheadunit950.blogspot.com]

China Outlines Two-Phase Chang’e 4 Moon Lander Mission [bestandroiddoubledinheadunit950.blogspot.com]

Later this year, the moon’s far side will welcome its first robotic visitor — China’s Chang’e 4 lander.

Zhao Xiaojin, a senior official at the China Aerospace Science and Technology (CAST), explained that the nation’s two-phase Chang’e 4 mission is being readied for launch this year.

“In the first half of 2018, we will first launch a relay satellite to Lagrange L2 Point, where the satellite can keep communication with both the far side of the moon and the Earth,” Zhao told China Central Television (CCTV) earlier this month. (The L2 Point is a gravitationally stable spot beyond the moon’s far side.) [China’s Moon Missions Explained (Infographic)] 

“Therefore, we can control the lunar probe for data transmission using this relay satellite,” Zhao added.

Launch of the Chang’e 4 lander is slated for the second half of 2018. After performing a soft touchdown on the lunar far side, the craft will “conduct in-situ and patrol exploration at the landing site,” Zhao said.

China’s Chang’e lunar exploration program takes its name from a Chinese moon goddess. The program’s first phase consisted of the successful Chang’e 1 and Chang’e 2 missions, which lifted off in 2007 and 2010, respectively. 

Chang’e 3 marked the beginning of the second phase, which includes orbiting the moon, landing and returning lunar samples to Earth. In 2013, Chang’e 3 performed the nation’s first-ever soft landing on the moon; the lander also deployed a rover known as Yutu (“Jade Rabbit”). 

Chang’e 4 was built as the backup to China’s Chang’e 3 probe. But Zhao told CCTV that Chang’e 4’s mission profile differs in key ways from that of Chang’e 3

“Chang’e 3 lunar probe used a slow and arc-shaped landing, while as for Chang’e 4 lunar probe, we have to adopt a steep and almost vertical landing,” Zhao explained. “Chang’e 4 lunar probe will have huge improvements on its capabilities, because we have adopted new technologies and new products. For example, Chang’e 3 lunar probe could not work during the night, but Chang’e 4 lunar probe can do some measurement work at night.”

Last year, Pei Zhaoyu, deputy director of the Lunar Exploration and Space Program Center with the China National Space Administration (CNSA), told attendees at the 7th CSA-IAA Conference on Advanced Space Technology that China will implement three missions in the polar regions of the moon and set up scientific research stations there to offer a platform for future lunar probes.

“We will carry out three missions at the moon’s polar regions to research the geological structure and mineral composition of its south pole, and we will take samples back from the moon during one of these missions,” Pei told CCTV. “By building scientific research stations on the moon, we want to provide a platform for larger-scale and more rich lunar probe activities in the future.” 

China’s blossoming robotic moon-exploration agenda suffered a setback last year, however: the July launch failure of the country’s most powerful rocket, the Long March 5, on its second flight. That heavy-lifter is needed to launch China’s planned lunar sample-return mission, Chinese officials have said.

This story has more information about the repercussions of the Long March 5 failure. And to learn more about Chang’e 4, check out this Gallery Military video.

Leonard David is author of “Mars: Our Future on the Red Planet,” published by National Geographic. The book is a companion to the National Geographic Channel series “Mars.” A longtime writer for Space.com, David has been reporting on the space industry for more than five decades. Follow us @Spacedotcom, Facebook or Google+. This version of the story published on Space.com. 

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Four Cubesats Snuck into Orbit Without Regulatory Approval, FCC Says [bestandroiddoubledinheadunit950.blogspot.com]

Four Cubesats Snuck into Orbit Without Regulatory Approval, FCC Says [bestandroiddoubledinheadunit950.blogspot.com]

Concerns about space junk and satellite-launch regulations are swirling after the Federal Communications Commission (FCC) alleged that a U.S. company launched four tiny satellites without permission.

As first reported in IEEE Spectrum, four miniature satellites called SpaceBee-1, 2, 3, and 4 launched to orbit from India aboard a Polar Satellite Launch Vehicle (PSLV) rocket in January, along with several dozen other cubesats and an Indian Earth-observing spacecraft.

Launch documents did not identify the SpaceBees’ operator. But the documents’ description of the four satellites matches information that a California-based company called Swarm Technologies filed in an application to the FCC last year. In the application, the company noted plans to launch four satellites on that same rocket and referred to the satellites as “Space BEES.” [In Photos: India’s PSLV rocket Launches Cartosat-2 Satellite & 30 More!]

The FCC declined to comment for IEEE Spectrum’s article, and the publication stated that Swarm Technologies did not respond to interview requests. But launch-services provider Spaceflight Industries confirmed to SpaceNews that it integrated the SpaceBees onto the PSLV for Swarm.

Spaceflight Industries representatives told SpaceNews that the responsibility for getting the necessary FCC approvals lies with a satellites’ developer.

“I always assumed that people wouldn’t launch something if they couldn’t” get those approvals, Curt Blake, president of Spaceflight Industries’ launch services group, told SpaceNews. “I thought that would be sort of a self-regulation function.”

On March 7, IEEE Spectrum reported, the FCC sent a letter to Swarm Technologies setting aside a grant to expand Swarm’s satellite program, pending further review. The reason: “to permit assessment of the impact of the applicant’s apparent unauthorized launch and operation of four satellites,” according to the letter.

Swarm Technologies is operating in stealth mode; its website reveals little information about the company’s plans. The one-page site simply states that Swarm will offer “the world’s smallest two-way communication satellites.” 

Some more data is available via Swarm’s FCC application for the launch. There, the company said the goal of the SpaceBee mission is “a technology demo for two-way communications satellites, data relay and a new attitude-control system.” The target altitude was 360 miles (580 kilometers) — roughly 1.5 times that of the International Space Station, which orbits at an average height of 250 miles (400 km).

But the SpaceBees will sink closer to Earth over time, dragged down by the planet’s atmosphere, the application noted. After the satellites’ operational phase, they will likely remain in orbit for anywhere from 4.4 to nine years, depending on the final orbit of the satellites and the influence of the sun on Earth’s atmosphere.

The FCC grounded the project over worries about the SpaceBees’ potential threat to other space assets. The tiny satellites measure 4 inches by 4 inches by 1.1 inches (10 by 10 by 2.8 centimeters), meaning they’re just 25 percent as big as a standard “1U” cubesat. That 1.1-inch side makes the SpaceBees too small to be easily tracked by the U.S. military’s Space Surveillance Network (SSN), the FCC wrote in a letter dated Dec. 12, 2017. And the satellites would only be able to beam out GPS data during their operational lifetimes. Swarm’s proposal to add microwave (Ku-band) radar reflectors to the satellites would be of little help, because just a “small portion” of the SSN uses that band, the FCC letter said. [Cubesats: Tiny, Versatile Spacecraft Explained (Infographic)]

“The ability of operational spacecraft to reliably assess the need for and plan effective collision-avoidance maneuvers will be reduced or eliminated,” the FCC wrote. “Accordingly, we cannot conclude that a grant of this application is in the public interest.”

The space age dawned with the launch of Sputnik 1, Earth’s first artificial satellite, in 1957. Thousands of additional spacecraft have followed in Sputnik’s footsteps, serving humanity in a variety of ways. How well do you know Earth’s satellites?

A Soviet technician works on Sputnik 1 before the satellite's Oct. 4, 1957 launch.

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Satellite Quiz: How Well Do You Know What’s Orbiting Earth?

The space age dawned with the launch of Sputnik 1, Earth’s first artificial satellite, in 1957. Thousands of additional spacecraft have followed in Sputnik’s footsteps, serving humanity in a variety of ways. How well do you know Earth’s satellites?

Start Quiz
A Soviet technician works on Sputnik 1 before the satellite's Oct. 4, 1957 launch.

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Swarm apparently aims to offer a satellite network for the “Internet of Things” (IoT), the universe of devices that are connected to the web. The IoT includes not only computers, tablets and phones, but also connected everyday devices such as refrigerators and thermostats. The U.S. National Science Foundation (NSF) awarded $220,463 to Swarm for an IoT satellite network under the foundation’s Small Business Innovation Research program in 2017, according to the NSF website.

“The proposed project addresses the problem that there are no existing low-cost options for sensing, transmitting and connecting devices from remote locations with no cell or Wi-Fi coverage,” read the abstract attached to Swarm’s proposal. Under the company’s proposal, Swarm said, “Scientific, shipping, tracking, automotive, agriculture, energy, medical, educational and other commercial entities will have the ability to return their data from anywhere on the planet to support tracking, safe operations, and optimal and timely decision making.”

After the rejection of the mini-satellite proposal, Swarm sent additional applications to the FCC, including one proposal for four larger cubesats (which would launch on a Rocket Lab rocket from New Zealand in April) and a second asking to construct ground stations. 

Swarm, which is based in Menlo Park, California, is led by Sara Spangelo, a former worker at NASA’s Jet Propulsion Laboratory who then joined Google, IEEE Spectrum reported. The publication added that Benjamin Longmier, Swarm’s chief financial officer, co-founded Apollo Fusion (a company that develops electric propulsion for satellites) and a balloon company called Aether Industries, which was eventually sold to Apple.

Follow us @Spacedotcom, Facebook or Google+. Originally published on Space.com.

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Equinox: Why Spring Weather Can Keep Us Guessing [bestandroiddoubledinheadunit950.blogspot.com]

Equinox: Why Spring Weather Can Keep Us Guessing [bestandroiddoubledinheadunit950.blogspot.com]

Next Tuesday, at 12:15:21 p.m. EDT (16:15:21 GMT), the winter season will officially come to an end in the Northern Hemisphere. How can we be so sure? At that moment, the sun will arrive at one of two positions where its rays will shine directly down on the equator. Indeed, if you were standing on the equator at a point just to the west of the Itapará River of the Roraima State in northern Brazil, the sun would appear directly overhead, even as we in the Northern Hemisphere make the transition from winter to spring. At that time, the sun will also be shining equally on both halves of the Earth. 

Spring at last!

Many look upon the arrival of spring as an end to cold — and, in northern climes — snowy weather. That, of course, is simply not true. In some years, unseasonably cold temperatures and accumulating snows can linger well into April, just as warm weather sometimes hangs on well into October. [Night Sky, March 2018: What You Can See This Month (Maps)]

 

The annual astronomical changes that cause the weather to vary in the planet’s temperate zones are far from simple. The plane of the Earth’s equator is tilted 23 1/2 degrees to the planet’s orbital plane around the sun. During the year, varying amounts of sunlight strike different regions of our planet. Both the angle of incidence of the solar radiation (the angle at which the sun’s rays strike the Earth’s surface, which provides a measurement of the intensity of solar radiation) and the length of daylight change dramatically.

While these are indeed the basic reasons for the temperature differences of the seasons, a number of meteorological factors produce the immediate, day-to-day variations we experience. And these variations are determined by our atmosphere’s heat-retaining ability and its circulation, which interact in a very complex way each day to determine the weather. But the seasons’ lag after the equinox can be appreciated by many people, just from their own experiences with weather in the United States and Canada.

For instance, summer will officially arrive with the solstice on June 21. If the insolation — the total energy received from the sun — alone governed the temperature, we should then experience the year’s hottest weather. But the atmosphere in temperate regions continues to receive more heat than it gives up to space — a situation that lasts a month or more, depending on the latitude. In New York City, for example, the stretch of time with the highest daily mean temperature of the year (77 degrees Fahrenheit, or 25 degrees Celsius) runs from July 11 through Aug. 2 (43 days after the solstice) before it finally begins to decline. A reverse process occurs after the northern winter solstice in December. 

The solar heating effect depends directly on the sun’s declination in the sky, which also controls its daily path across the sky and the number of hours the sun is above the horizon. On April 13, the insolation is the same as it is on Aug. 29, but in New York City, for example, you can see a big difference because of the seasonal lag. On April 13, 1940, for example, it was as cold as 26 degrees F (minus 3 degrees C), and on April 13, 1875, the same city saw as much as 10 inches of snow — whereas the mercury soared as high as 99 degrees F (37 degrees C) on Aug. 29, 1953. [Vernal Equinox: First Day of Spring Seen from Space (Photo)]

If you ask someone to give you the date of the first day of spring, the response almost certainly will be March 21. But since 1980, for North Americans, spring has actually begun no later than March 20. And it will continue this way through the year 2102. 

In 2016, for the Central, Mountain and Western time zones, spring begins on March 19. And in 2020, it will fall on March 19 for all of the United States for the first time since 1896. This shift in dates happens because the Earth’s elliptical orbit changes the orientation of its axis, and because our year does not contain an even number of days. The vagaries of the Gregorian calendar, such as the inclusion of a leap day in century years divisible by 400, also help contribute to the seasonal date shift. 

In fact, had 2000 not been a leap year, the equinox would be occurring next Wednesday, not next Tuesday.

Another complexity involving the vernal equinox concerns the axiom, “equal days and equal nights on the equinox.” Yet each year, I always get at least one or two inquiries asking why that isn’t so. Perhaps someone who was skimming through the weather page of their newspaper on the day of the equinox, looked at the almanac box — which provides the local time of sunrise and sunset — and noticed that the length of day and night is not equal at all. In fact, on the equinox dates in both March and September, the length of daylight is actually longer than the period of darkness by several minutes.

Check out the situation for New York City. As the table below shows, days and nights are equal in length, not on the equinox, but on St. Patrick’s Day:

Date Sunrise Sunset Length of Day
March 17 7:05 a.m. 7:05 p.m. 12 hrs. 00 min.
March 18 7:03 a.m. 7:06 p.m. 12 hrs. 03 min.
March 19 7:02 a.m. 7:07 p.m. 12 hrs. 05 min.
March 20 7:00 a.m. 7:08 p.m. 12 hrs. 08 min.

One factor to consider is that when we refer to sunrise and sunset, the time refers to when the very top edge of the sun appears on the horizon. Not its center, nor its bottom edge. 

This fact alone would make the time of sunrise and sunset a little more than 12 hours apart on equinox days. The sun’s apparent diameter is roughly equal to half a degree.

But the main reason that this happens is due to our atmosphere; it acts like a lens and refracts (bends) its light above the edge of the horizon. In its calculations of sunrise and sunset times, the U.S. Naval Observatory routinely uses 34 arc minutes for the angle of refraction and 16 arc minutes for the semi/half-diameter of the sun’s disk. In other words, the geometric center of the sun is actually more than eight-tenths of a degree below a flat and unobstructed horizon at the moment of sunrise. 

As a result, viewers actually see the sun for a few minutes before its disk actually rises and for a few minutes after it has actually set. So you can thank our atmosphere for making our days a bit longer; the length of daylight on any given day is actually increased by approximately 6 or 7 minutes.

In other words, when you watch the sun either coming up above the horizon at sunrise or going down below the horizon at sunset, you are actually looking at an illusion — the sun is not really there, but actually below the horizon! 

Now you see it … when you don’t!

Joe Rao serves as an instructor and guest lecturer at New York’s Hayden Planetarium. He writes about astronomy for Natural History magazine, the Farmers’ Almanac and other publications, and he is also an on-camera meteorologist for Fios1 News in Rye Brook, New York. Follow us @Spacedotcom, Facebook and Google+. Original article on Space.com.

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