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When the astronauts get back form space they have weaker muscles than when they went. They use things like treadmills and exercise bikes so their muscles don't get to weak.

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We rely on our muscles to walk, lift objects and climb stairs. However, in space muscles become weaker when there is no gravity to overcome. When astronauts come back to normal gravity on Earth, they suddenly feel very heavy and find it hard to keep their balance. Similar effects occur in elderly p…

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Astronaut Peggy Whitson has broken the U.S. record for most time in space. She talked up Mars during a congratulatory call from President Donald Trump.

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Astronaut Peggy Whitson has broken the U.S. record for most time in space. She talked up Mars during a congratulatory call from President Donald Trump.

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This is Tom Wagg. He's an avid space buff, and at the age of 15, he achieved something most astronomers can only dream of.

According to the U.K.'s Keele University, Wagg was engaged in a work-experience program at the college two years ago when "he spotted the planet by finding a tiny dip in the light of a star as a planet passed in front of it."

Wagg, who is now 17, apparently found the planet by reviewing data collected by the Wide Angle Search for Planets (WASP) project. Keele University, which helps fund and operate WASP, says it's taken two years for experts to confirm Wagg's discovery.

"It's really exciting. I was amazed. It's definitely something you can tell people about," the teen told local newspaper The Sentinel.

This is an artist's impression of the new planet orbiting its star:

Wagg's planet -- which has yet to be given a name but bears the catalogue number WASP-142b -- is located in our galaxy some 1,000 light years from Earth. It is in a class of exoplanets known as " hot Jupiters," so-called because they are large like Jupiter. Unlike Jupiter, however, they orbit very close to their host star.

"The atmospheres of 'hot Jupiters' are very exotic, by solar system standards. They typically have temperatures of a thousand to several thousand Kelvin, so at these temperatures these planets could have clouds of molten rock, for example," Caltech professor Heather Knutson told Universe Today last year about the exoplanets.

Wagg is believed to be one of the youngest people ever to discover a new planet. A straight-A student, the high schooler says he plans to study physics in college.

BEFORE YOU GO

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Teen Discovers New Planet 1,000 Light-Years From Earth

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This is Tom Wagg. He's an avid space buff, and at the age of 15, he achieved something most astronomers can only dream of. According to the U.K.'s Keele University, Wagg was engaged in a work-experience program at the college two years ago when "he spotted the planet by finding a tiny dip in the light of a star as a planet passed in front of it."

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This is an article showing what the astronauts eat in Space

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Astronauts are far from the shops, so they have to rely on regular deliveries of food. Every few months an automated spacecraft, such as ESA’s Automated Transfer Vehicle or the Russian Progress, arrives loaded with fresh fruit, water and pre-packed meals.

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On July 26, 2004, the rover took this photo commemorating its 90 days on Mars -- the amount of time the mission was supposed to last. Instead, it continued for 15 years. Opportunity made an impact. A panoramic image shows the heat shield impact site when it landed in 2004

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On July 26, 2004, the rover took this photo commemorating its 90 days on Mars -- the amount of time the mission was supposed to last. Instead, it continued for 15 years. Opportunity made an impact. A panoramic image shows the heat shield impact site when it landed in 2004

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The opportunity rover was only supposed to live for 90 days but instead was alive for 15 years,his last message to earth was