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Astronaut Runs Boston Marathon from Space
- Watch this video about astronauts on HowStuffWorks. Sunita Williams is an astronaut on the International Space Station, where she has been training for the Boston Marathon. She plans to run the 26.2 miles while tethered to a treadmill inside the space station; Williams is also on track to break the world record for the longest stay in space. See how astronauts work in this news video from Reuters.
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The End of the Era of Stars
(3:04)
Some experts believe the galaxy will eventually be devoured by black holes.
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Space Week: Space Station and Beyond 1
(1:21)
For the privileged few, the view from the International Space Station is ever-changing and always amazing. Learn more about the International Space Station in this video.
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Space Week: Space Station and Beyond 2
(2:41)
A mission to Mars will be an expensive, long-term endeavor, but it's a dream that inspires the next generation of spacefarers. Learn more about the mission to Mars in this video.
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Shape of the Universe
(2:34)
Learn about the forms and contours of the universe.
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Does Earth have a Twin?
(0:51)
Watch this Reuters video showing a computer mock-up of the smallest planet ever found outside our solar system, and it could be very similar to Earth. The new planet is circling a small red dwarf star 30 light years away in the constellation of Leo.
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Humans Already on Mars
(0:37)
Have humans already landed on Mars? Watch this Reuters video of new pictures taken by NASA's Spirit Rover that shows an image resembling a human shape on Mars. NASA is planning more investigation.
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Shooting Stars: Meteors and Meteorites
(1:31)
Shooting stars come in the wake of comets and are commonly known as meteors.
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Physics: Primal Forces
(2:53)
Learn about the primal forces of the universe-gravity, electromagnetic, the Strong and Weak nuclear force.
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