Wednesday, May 31, 2017

Asteroid Collision May Have Tipped Saturn’s Moon Enceladus [bestandroiddoubledinheadunit950.blogspot.com]

2 Newborn Planets May Be Forming Around a Distant Young Star [bestandroiddoubledinheadunit950.blogspot.com]

2 Newborn Planets May Be Forming Around a Distant Young Star [bestandroiddoubledinheadunit950.blogspot.com]

Astronomers have found evidence suggesting that two infant planets are forming around a distant young star in our Milky Way galaxy.  

Located roughly 400 light-years from Earth, the young star, known as HD 163296, is approximately 5 million years old and about twice the mass of our sun. The two newborn planets orbiting HD 163296 are not yet fully formed, and each is about the size of Saturn, the second-largest planet in our solar system. 

Thousands of planets have been found around other stars in our galaxy. However, “nearly every one of these exoplanets has been discovered in orbit around a mature star with a fully evolved planetary system,” officials said in a statement from the National Radio Astronomy Observatory. Therefore, the recent findings may reveal new clues about planet formation, the scientists said. [10 Exoplanets That Could Host Alien Life]

Using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, astronomers examined the distribution of both the dust and the carbon monoxide gas components of the protoplanetary disk surrounding HD 163296. Observations of the star’s disk revealed evidence of two infant planets forming there, officials said. 

The gas and dust of the protoplanetary disk surrounding a young star named HD 163296, in which two new planets are forming.

The gas and dust of the protoplanetary disk surrounding a young star named HD 163296, in which two new planets are forming.

Credit: ALMA (ESO/NAOJ/NRAO); A. Isella; B. Saxton (NRAO/AUI/NSF)

After stars are born, clouds of leftover gas and dust condense into rings and form what is called a protoplanetary disk. Over time, the material in the disk clumps together under the pull of gravity to form new planets. In the dust and gas in the protoplanetary disk surrounding HD 163296, astronomers found three distinct gaps. 

The first gap is approximately 60 astronomical units (AU) from the central star. (One AU is the distance from the sun to the Earth — about 93 million miles, or 150 million kilometers — and 60 AU is about twice the distance from our sun to Neptune.) The other two gaps are located roughly 100 AU and 160 AU from the central star. At this distance, the farthest two gaps would extend well beyond our solar system’s Kuiper Belt — the distant swath of icy bodies beyond Neptune, the outermost planet in our solar system. 

“ALMA has shown us amazing images and never-before-seen views of the rings and gaps around young stars that could be the hallmarks of planet formation,” Andrea Isella, lead author of the study and an astronomer at Rice University in Houston, said in the statement. “However, since we were only looking at the dust in the disks with sufficient detail, we couldn’t be sure what created these features.”

The ALMA radio telescope can detect faint millimeter wavelengths of light emitted by gas molecules. ALMA data showed that the farther two gaps in HD 163296’s protoplanetary disk had a considerable decrease in carbon monoxide, compared with the surrounding dust. This decrease suggests that planets are forming in the outer regions of the planetary system, officials said. 

Astronomers have confirmed more than 800 planets beyond our own solar system, and the discoveries keep rolling in. How much do you know about these exotic worlds?

Artist's conception of alien planets Kepler-36b and c

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On the other hand, there was little or no difference in carbon-monoxide concentration observed in the gap nearest to the star, which indicates that it was created by something other than planet formation, Isella said.

“Dust and gas behave very differently around young stars,” Isella said in the statement. “We know, for example, that there are certain chemical and physical process[es] that can produce ringed structures in the dust like the ones we have seen previously. We certainly believe these structures could be the work of a nascent (young) planet plowing through the dust, but we simply can’t rule out other possible explanations. Our new observations provide intriguing evidence that planets are indeed forming around this one young star.”

These are not the first signs of infant planets around young, distant stars. Astronomers have found similar evidence while studying other young stars, such as HL Tauri and TW Hydrae. In these studies, ALMA observations “revealed striking gaps and prominent ring structures in the stars’ dusty (protoplanetary) disks,” officials said. 

“These features may be the tantalizing first signs that planets are being born,” they said. “Remarkably, these signs appeared around much younger stars than astronomers thought possible, suggesting that planet formation can begin soon after the formation of a protoplanetary disk.” 

The new findings will be published in the journal Physical Review Letters. 

Follow Samantha Mathewson @Sam_Ashley13. Follow us @Spacedotcom, Facebook and Google+. Original article on Space.com.

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Weight loss tips: Doing THIS exercise burns MORE fat than going for a run [bestandroiddoubledinheadunit950.blogspot.com]

Weight loss tips: Doing THIS exercise burns MORE fat than going for a run [bestandroiddoubledinheadunit950.blogspot.com]

Weight loss is going to be at the top of most Brits’ list as January’s ‘New Year, New You’ season approaches.  And with these five key exercises you won’t have to swap your social life for the gym. 

The barbell rollout is said to be the best exercise for burning fat and fast. Express.co.uk explains how to do a barbell rollout and four other key fat-burning exercises. 

Barbell rollouts

A study at the Norwegian University of Sport and Physical Education revealed this gym move burns fat stored in the body faster than ‘traditional’ cardio exercise. 

That doesn’t mean you should ditch your 20 minute warm-up jog for a barbell rollout but combining the two will hit your body where it really matters. 

You must take care to do this move properly, however, as this core killer risks the shoulders and lower back if performed without due care.

According to Muscle and Fitness magazine, this is how you should undertakes a barbell roll out: 

  • Place a barbell on the floor and grab it with an overhand grip, your hands shoulder-width apart
  • Your shoulders should be directly over the barbell. This is your starting position
  • Keeping your knees in a fixed position, roll the bar out in front of you until your arms fully extend in front of your body

It comes after exercise was revealed not to be the most important factor in slimming down. 

Amie Richmond, weight loss expert and nutritionist at www.bodychef.com, said: “When embarking on a fat or weight loss programme the first question you should always ask yourself is ‘do I want to be thin or do I want to be healthy?’

Deadlift

A weight training exercise that intimidates many – but an important one to master for your health and fitness regime. The deadline involves picking up a loaded barbell or bar form the ground to the hips, then lowered back to the ground. 

The ‘powerlifting’ exercise may seem daunting but it’s one of the best ways to kick-start any weight loss regime. 

The impressive move targets the quads, hamstrings, gluteal muscles, lower back, traps, and forearms – really working your whole body in one fail-safe move and it’s the best for building total-body strength, size and athleticism.

Push ups

It might seem like a no-brainer but push-ups are the easiest way to kick-start your fitness for 2017. And with no gym or equipment required, there’s no excuse not to get involved. 

Doing a push-up, or press up as they’re sometimes called, activates your latissimi dorsi muscles. It also strengthens the chest, shoulder and arms all at once. 

How will this help you burn fat? Well, the more muscles you activate, the more calories your body burns during a work-out. 

Bent Over Row

It’s important to get the bent over row technique correct or you risk hurting your back. 

Bodybuilding.com advises holding a barbell with your palms facing down, bend the knees and keep the back straight until it is almost parallel to the floor. 

Breath out and lift the barbell up toward yourself, keeping your elbows close to your body. Breath out as the bar comes up toward 

This exercise incorporates the lats, rhomboids, rear delts, traps, and even the biceps.

Sit-ups

Doing thousands of sit-ups isn’t the best option for pin-pointed weight loss, but the exercise does offer other benefits. 

Performing sit-ups after or during a cardio-based work out strengthens the core, in turn helping to build abdominal muscles. 

Having more muscles will, in turn, increase the amount of calories that your body burns. 

Doing a sit-up properly is vital to your health and well-being. To begin, lie on your back with your knees bent, feet flat on the floor. Place your finger tips gently behind your ears, and pull your shoulder blades back so your elbows are out to the side.

Brace your abs and then raise your body up towards your knees, shoulders lifted off the floor.

If you want the perfect bottom, PT Sophie Holmes has the best work-out for a rounded rear. 

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Review: Annette Bening Gives 20th Century Women Its Warmth and Vibrance [bestandroiddoubledinheadunit950.blogspot.com]

How to See Saturn and the Moon in Tuesday’s Pre-dawn Sky [bestandroiddoubledinheadunit950.blogspot.com]

How to See Saturn and the Moon in Tuesday’s Pre-dawn Sky [bestandroiddoubledinheadunit950.blogspot.com]

In late December, the ringed planet Saturn will be sitting very low in the southeastern sky before dawn. On Tuesday, Dec. 27, the old crescent moon will sit only 5 degrees to the northwest of (above) the planet. The best viewing times are between 6:15 a.m. and 7:15 a.m. local time.

Early Tuesday morning (Dec. 27) we all have an opportunity to get our first look at the ringed wonder of the solar system, Saturn, in the early morning sky.

Saturn has been hidden from our view since mid-November, when it was an evening object, and moved progressively lower in the southwest sky until it ultimately disappeared into the glare of the sun. The planet arrived at solar conjunction on Dec. 10 and transitioned into the morning sky. And on Tuesday morning, Saturn will move far enough away from the sun to again be glimpsed visually – weather permitting – low in the southeast sky about 45 minutes before sunrise. [Video: The Planets in December’s Sky]

Of course, it does not hurt to have a benchmark to positively make a sighting and that’s where the moon comes in; appearing as just a hairline sliver of light, only 3 percent illuminated by the sun.  On Tuesday morning, 45 minutes before sunrise, look for the moon low in southeast sky. And if you look straight down below it, close to the horizon, you’ll see a moderately bright “star” shining with a yellow-white hue. That will not be a star, but the planet Saturn. 

The distance between the moon and Saturn will measure about 5 degrees. As I have said many times before, your clenched fist held out at arm’s length measures roughly 10 degrees. So on Tuesday, Saturn will be about “half a fist” below the razor-thin lunar crescent.

Two things will markedly increase your chances of making a sighting. First, make sure that you do not have any obstructions such buildings or trees toward the southeast part of the sky that could block your view of either the moon or Saturn. Secondly, it would help if you scanned that part of the sky with good binoculars, which will certainly help in your picking out the moon and Saturn against the brightening sky.  Once you hit upon the moon, finding Saturn should be easy; just drop an imaginary plum line straight below the moon and you will hit upon Saturn.

The year 2017 will belong to Saturn, for this is the year its magnificent ring system will be at their maximum tilt toward Earth. That will actually come in October, when the tilt will be equal to 27 degrees, though right now the rings are practically at their maximum … currently tilted 26.8-degrees toward us. If you have a telescope, you’ll have to wait a while for Saturn to get high enough above the horizon and above any horizon haze for you to get a good view of it.   If you try to look at it through a telescope on Tuesday morning, you likely would be disappointed because objects near the horizon tend to have their images quiver or “boil” because of atmospheric instability. You’ll have to wait several more weeks for Saturn to climb high enough in the sky and far enough from the dawn glow to make it worthwhile to look at through a small telescope.

But at least be advised that Saturn has begun the process of emerging back into view and that 2017 promises many great nights observing the sixth planet from the sun. The Lord of the Rings is back!

Joe Rao serves as an instructor and guest lecturer at New York’s Hayden Planetarium. He writes about astronomy for Natural History magazine, the Farmer’s Almanac and other publications, and he is also an on-camera meteorologist for Fios1 News, serving the Hudson Valley of New York. Follow us @SpacedotcomFacebook or Google+. Originally published on Space.com.

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Stephen Colbert Revealed What He Got David Letterman for Christmas [bestandroiddoubledinheadunit950.blogspot.com]

Bummed by 2016? Watch This Pop Mashup of 2016’s Biggest Hits [bestandroiddoubledinheadunit950.blogspot.com]

Naga Munchetty weight loss: Strictly Come Dancing routines help newsreader SHED the pounds [bestandroiddoubledinheadunit950.blogspot.com]

Naga Munchetty weight loss: Strictly Come Dancing routines help newsreader SHED the pounds [bestandroiddoubledinheadunit950.blogspot.com]

The star was pictured recently on the red carpet looking extremely trim, which is no surprise after she survived four week of the dance programme before being voted off.

Dancing is not Naga’s usual exercise of choice, and she has a passion for golf, playing with a handicap of nine.

In fact, Naga admitted ahead of her appearance on the Strictly that she was not a natural dancer at all.

Describing her wedding dance 12 years ago, she said: “I had to dance lessons before I got married and they didn’t quite work out because I ended up falling over on our first dance and James came over and picked me up very gallantly but no they didn’t work out. That’s all I’ve had.”

Not only is Naga’s waist much more trim since her turn on Strictly, her arms are also incredibly toned.

Her cheekbones are now very defined, showing off her pretty features and amazing bone structure.

Naga is not the only celebrity to shed the pounds this year – Rebel Wilson hit the headlines after dropping two stone in eight months.

Known for her role as ‘Fat Amy’ in Pitch Perfect, Rebel is now sporting a much slimmer figure after her weight loss transformation began earlier this year.

The youngster celebrated her 26th birthday just before entering the jungle, enjoying a meal out with her boyfriend Luke Crodden.

And it would seem Luke has had more of an impact on Scarlett than previously thought.

Scarlett, speaking to New magazine, said her boyfriend encouraged her to go to the gym and keep up her training routine.

She said: “My boyfriend is super-fit so it’s quite good having him on side because he’s quite motivated. I’ve got no excuse now!”

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George Michael’s Boyfriend Opens Up About the Singer’s Death [bestandroiddoubledinheadunit950.blogspot.com]

How George Michael Transformed Pop Music [bestandroiddoubledinheadunit950.blogspot.com]

Naga Munchetty weight loss: Strictly Come Dancing routines help newsreader SHED the pounds [bestandroiddoubledinheadunit950.blogspot.com]

Naga Munchetty weight loss: Strictly Come Dancing routines help newsreader SHED the pounds [bestandroiddoubledinheadunit950.blogspot.com]

The star was pictured recently on the red carpet looking extremely trim, which is no surprise after she survived four week of the dance programme before being voted off.

Dancing is not Naga’s usual exercise of choice, and she has a passion for golf, playing with a handicap of nine.

In fact, Naga admitted ahead of her appearance on the Strictly that she was not a natural dancer at all.

Describing her wedding dance 12 years ago, she said: “I had to dance lessons before I got married and they didn’t quite work out because I ended up falling over on our first dance and James came over and picked me up very gallantly but no they didn’t work out. That’s all I’ve had.”

Not only is Naga’s waist much more trim since her turn on Strictly, her arms are also incredibly toned.

Her cheekbones are now very defined, showing off her pretty features and amazing bone structure.

Naga is not the only celebrity to shed the pounds this year – Rebel Wilson hit the headlines after dropping two stone in eight months.

Known for her role as ‘Fat Amy’ in Pitch Perfect, Rebel is now sporting a much slimmer figure after her weight loss transformation began earlier this year.

The youngster celebrated her 26th birthday just before entering the jungle, enjoying a meal out with her boyfriend Luke Crodden.

And it would seem Luke has had more of an impact on Scarlett than previously thought.

Scarlett, speaking to New magazine, said her boyfriend encouraged her to go to the gym and keep up her training routine.

She said: “My boyfriend is super-fit so it’s quite good having him on side because he’s quite motivated. I’ve got no excuse now!”

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http://www.express.co.uk/life-style/diets/747554/naga-munchetty-weight-loss Naga Munchetty weight loss: Strictly Come Dancing routines help newsreader SHED the pounds

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NASA’s Orion Spacecraft In 2016 – Behind The Scenes Look | Video [bestandroiddoubledinheadunit950.blogspot.com]

NASA’s Orion Spacecraft In 2016 – Behind The Scenes Look | Video [bestandroiddoubledinheadunit950.blogspot.com]

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New Method Could Aid Search for Life on Alien Worlds [bestandroiddoubledinheadunit950.blogspot.com]

New Method Could Aid Search for Life on Alien Worlds [bestandroiddoubledinheadunit950.blogspot.com]

A new technique for studying exoplanet atmospheres could make it possible for scientists to get a close look at the atmosphers of planets like Proxima b in the 2020s.

A newly proposed technique could make it possible to search for life on alien planets much sooner than scientists had expected.  

Earlier this year, scientists discovered a planet orbiting the nearest star to Earth’s own sun. Although relatively little is known about this newly discovered planet, which was dubbed Proxima b, evidence suggests it’s possible that it has the right conditions to support life.

Of course, scientists are eager to look for signs of life on Proxima b (and members of the general public are eager to hear the results). But a deep look at the planet’s atmosphere, where signs of life might hide, might require massive, next-generation, space-based telescopes that aren’t expected to get off the ground until at least the 2030s. [Giant Space Telescopes of the Future (Infographic)]

But now, at least two different groups of astronomers are investigating a method for doing atmospheric studies of Proxima b — and other, possibly habitable planets like it — using ground-based telescopes that are scheduled to come online in the 2020s, significantly cutting down on the wait time.

Vermin of the sky

Thousands of planets have been identified around stars other than our own, a majority of them in the past six years, thanks to the dedicated Kepler space telescope (although many other observatories have contributed to this exoplanet treasure trove).

But finding planets is much different from characterizing their properties — things such as a planet’s mass and diameter; whether it is made of rock or primarily of gas; its surface temperature; whether it has an atmosphere; and what that atmosphere is composed of.  

Earlier this month, at a workshop hosted by the National Academy of Sciences that explored the search for life beyond Earth, Matteo Brogi, a Hubble fellow at the University of Colorado, described a method for studying the atmosphere of Proxima b using next-generation ground-based telescopes.

The approach could be applied to other planets that, like Proxima b, are rocky, and orbit in the habitable zone of relatively cool stars, known as red dwarfs. The astronomical community is already emphasizing the search for “Earth-like” planets around these small stars because the latter are incredibly common in the galaxy; astronomers have even jokingly referred to red dwarfs as the “vermin of the sky.”

“The frequency of small planets around small stars is extremely high; on average, there are about 2.5 planets per star,” Brogi said. “Regarding habitable planets around small stars, there should be more or less a frequency of close to 30 percent. So every three stars should have a habitable planet.”

An accordion of light

The approach Brogi and his colleagues are investigating would combine two different techniques for studying stars and exoplanets. The first is an extremely common technique in astronomy called high-resolution spectroscopy, which essentially looks at light from an object in extremely fine detail.

To understand high-resolution spectroscopy, consider the way sunlight passes through a prism and produces a rainbow; the glass takes the light and fans it out like an accordion, revealing that the whitish colored light is actually composed of various colors.

Spectroscopy spreads the light out even more — stretching that accordion out to unrealistic lengths for a musical instrument — revealing finer and finer detail about the colors (wavelengths) that are contained in the light from stars, planets and other cosmic objects. The resulting band of colors is called an object’s spectrum.

The first scientists to use spectroscopy discovered something so amazing that, without it, the field of modern astronomy might be entirely unrecognizable: Chemical elements leave a unique fingerprint in the light spectrum. In other words, if a star is made of hydrogen and helium, those elements will leave a distinct signature on the light the star emits — when astronomers fan out the light from the star, they can see that signature in the wavelengths that are present or not present. This tool has allowed astronomers to learn about the composition of objects billions of light-years away, and helped to uncover the incredible fact that we are all made of stardust.

So if spectroscopy can be applied to the light coming from exoplanets, scientists might get a look at the composition of the planetary atmospheres. It’s still unclear to scientists which atmospheric chemical mixtures would strongly indicate the presence of life — most plants on Earth consume carbon dioxide and produce oxygen, and other forms of life produce methane, so a combination with high levels of oxygen and methane might indicate the presence of biology. However, there are potential false positives and false negatives, not to mention potential life-forms that consume and produce different chemicals than living organisms on Earth.

But there are a couple of hurdles standing in the way of performing spectroscopy on a planet, and one of the biggest is that trying to see the light from a planet (which is fairly dim) when it is orbiting right next to a star (which is incredibly bright) is like trying to see the glow of a firefly against a backdrop of 1,000 stage spotlights (which would be difficult). 

So Brogi and his colleagues have proposed a way to help separate those two sources of light. Because the planet is moving around the star, it is also moving toward, and then away from, the Earth throughout its orbit. When a source of light moves toward an observer, the light waves become compressed; when the source moves away from the observer, the light waves become stretched out. This is called the Doppler effect, or redshift. It also happens with sound waves, which is why when a police siren is moving toward you, it sounds like it is increasing in pitch; the waves get pushed together so that they literally have a higher frequency. When the car passes you and starts moving away, it sounds like the siren is getting lower in pitch, because the waves get stretched out and the frequency goes down.

The idea is that, out of the sea of light coming from a distant star, scientists could pick out the island of light coming from the planet by looking for the redshifted/Doppler shifted light. (This also could be used to separate any interference from Earth’s own atmosphere.) Looking for those shifts in the light also falls under the header of spectroscopy.

Nonetheless, the Doppler shift approach wouldn’t be powerful enough to work on its own, and this is where the second technique comes in: Astronomers would need to directly image the star or planet system first.

The planet-finding technique known as “direct imaging” is pretty much what it sounds like: an attempt to get a direct snapshot of both a planet and the star it orbits. To do this, scientists try to reduce the star’s blinding glare enough so that they can see the light from the planet. It’s a challenging method and one that can’t be done for just any system — the planet has to be sufficiently bright compared to its parent star, which means most of the planets seen with direct imaging thus far are gas giants like Jupiter, and oriented in such a way that it can be viewed clearly from Earth. 

So Brogi and his colleagues proposed the method of first directly imaging the planetary system, using that image to locate the planet, and then further separating the planet’s light from the star’s light using the Doppler method. From there, they can use high-resolution spectroscopy to learn about the planet’s atmosphere.

Telescopes currently in operation don’t have the sensitivity to make this plan a reality, but some very large telescopes currently under development could. These scopes should be able to directly image smaller planets, as long as those planets are orbiting dimmer stars. Those include the Giant Magellan Telescope, scheduled to turn on around 2021, and the European Extremely Large Telescope, set to begin taking data as early as 2024. Direct imaging capabilities are likely to improve by leaps and bounds with these telescopes, but with direct imaging alone, it will likely not be possible to characterize many Earth-size, potentially habitable worlds.

During his talk, Brogi said there should be “on the order of 10” potentially habitable planets that this method could identify and study.

Challenges and progress

Brogi noted that there are caveats to the plan. For example, many of the predictions that he and his team made about how sensitive the method would be were “based on best-case scenarios,” so dealing with real data will undoubtedly pose challenges. Moreover, the method compares the observed planetary spectra with laboratory experiments that recreate the expected spectra for various chemical elements, which means any errors in that laboratory work will carry over into the planet studies. But overall, Brogi said he and his colleagues think the approach could provide a better glimpse of the atmospheres of small, rocky, potentially habitable planets than scientists are likely to see for a few decades.

They aren’t the only group that thinks so. Researchers based at the California Institute of Technology (Caltech) are investigating this approach as well, according to Dimitri Mawet, an associate professor of astronomy at Caltech. Mawet and his colleagues call the approach high dispersion coronagraphy (HDC) — a combination of high-resolution spectroscopy and high-contrast imaging techniques (direct imaging). (Similar lines of thought have been proposed by other groups.)

Mawet told Space.com in an email that he and his colleagues recently submitted two research papers that explore the “practical limits of HDC” and demonstrate “a promising instrument concept in the lab at Caltech.” He said he and his colleagues plan to test the technique using the Keck telescope, located in Hawaii, “about two years from now,” to study young, giant planets (so not very Earth-like). He confirmed that to use the technique to study small, rocky planets like Proxima b, scientists will have to wait for those next-generation, ground-based telescopes, like the Giant Magellan Telescope and the European Extremely Large Telescope. He also confirmed Brogi’s estimation of “on the order of 10” rocky exoplanets in the habitable zone of their stars that could be studied using this technique.

“As [Brogi] mentioned, there are several caveats associated with the HDC technique,” Mawet told Space.com. “However, we are working on addressing them and, in the process, studying the fundamental limits of the technique. Our initial results are very promising, and exciting.”

Follow Calla Cofield @callacofield.Follow us @Spacedotcom, Facebook and Google+. Original article on Space.com.

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Tuesday, May 30, 2017

Christmas in Orbit: Astronauts Make Merry Aboard the Space Station [bestandroiddoubledinheadunit950.blogspot.com]

Christmas in Orbit: Astronauts Make Merry Aboard the Space Station [bestandroiddoubledinheadunit950.blogspot.com]

NASA astronaut Peggy Whitson dons a Santa hat and Christmas socks in weightlessness to celebrate the holidays on the International Space Station on Dec. 22, 2016.

Astronauts Peggy Whitson, Shane Kimbrough and Thomas Pesquet discuss Christmas on the International Space Station.

Astronauts Peggy Whitson, Shane Kimbrough and Thomas Pesquet discuss Christmas on the International Space Station.

Credit: NASA

Today, astronauts on the International Space Station will celebrate the day in many of the same ways that people on Earth celebrate the holiday — relaxing, talking to friends and family, and sharing a special meal. But they do it all while weightlessly floating inside a laboratory that’s whizzing around the Earth at 17,500 mph (28,000 kilometers/hour).

Astronauts at the space station even have gifts from home to open this morning. The gifts were sent to space earlier this month inside a Japanese cargo supply ship. Because the spacecraft goes around the Earth every 92 minutes, its occupants will see about 15 sunrises throughout the day. That’s 15 Christmas mornings in less than 24 hours!

Instead of waking up and getting straight to work, like they did on Thanksgiving, the astronauts will enjoy the day off for Christmas. NASA spokesman Dan Huot told Space.com that the astronauts usually get Sundays off anyway, so this year they’ll have Monday (Dec. 26) off as well. [Holidays in Space: An Astronaut Photo Album]

As is tradition, the astronauts sent Christmas wishes down from space this week in preparation for the worldwide holiday. On Tuesday (Dec. 20), NASA shared a video in which three of the six crewmembers aboard the station talked about what the holiday means to them — and what’s on the dinner menu, of course.

French astronaut Thomas Pesquet rocks a classic Santa hat in the video. In that weightless environment, though, his hat takes on the pointy shape of one you’d find on an elf or a lawn gnome. At least it didn’t float away from his head. Kudos to Pesquet for sporting his Christmas spirit!

Pesquet talked about his big family back home in France, where his grandmother would usually cook huge meals for him and his 25 cousins. “I won’t be able to be there of course but I’ll think of them. I’ll try to give them a call and catch up as much as I can and make the most of this opportunity to look at the Earth and reflect about what Christmas means to us, to individuals, to the world in general, and I think we’ll have a good time on board the ISS and share a Christmas meal together,” Pesquet said. [Space Christmas: Festive Photos of Cosmic Beauty]

Their meal will consist of many of the same foods Americans eat during the holidays — turkey, green beans, potatoes, cornbread stuffing and fruit salad. But instead of using plates, they’ll be eating out of cans and pouches. The astronauts even get to enjoy some gingerbread cookies, chocolate cake and hot cocoa for dessert. [Space Food Photos: What Astronauts Eat in Orbit]

Astronauts aboard the International Space Station show off their Christmas dinner. NASA astronaut Peggy Whitson sends a package of dehydrated mashed potatoes floating in microgravity while holding packets of cider and hot cocoa. NASA astronaut and ISS commander Shane Kimbrough holds packages with turkey, fruit salad, green beans and potatoes. French astronaut Thomas Pesquet looks on in a weightless Santa hat.

Astronauts aboard the International Space Station show off their Christmas dinner. NASA astronaut Peggy Whitson sends a package of dehydrated mashed potatoes floating in microgravity while holding packets of cider and hot cocoa. NASA astronaut and ISS commander Shane Kimbrough holds packages with turkey, fruit salad, green beans and potatoes. French astronaut Thomas Pesquet looks on in a weightless Santa hat.

Credit: NASA

Besides the traditional American holiday fare, Pesquet has some “French delicacies” to share with his crewmates: chicken supreme with morels and ox tongue, for example. From the subtle looks on his face, American astronaut and ISS commander Shane Kimbrough seemed a bit skeptical about trying the foreign foods  Pesquet discusses in the video.

NASA astronaut Peggy Whitson was also in the video. “I think being on board the ISS gives us a slightly different perspective of Christmas,” she said. “Obviously friends and family are important to all of us. But besides funny hats there is another very important aspect of being on [the] ISS, and that’s seeing the planet as a whole, and it actually reinforces, I think, that the fact that we should live as one people and strive for peace.”

Email Hanneke Weitering at hweitering@space.com or follow her @hannekescience. Follow us @Spacedotcom, Facebookand Google+. Original article on Space.com.

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