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Astronaut
Find out everything there is to know about astronauts and stay updated on the latest space news with the comprehensive articles, interactive features and space pictures at LiveScience.com. Learn more about these fascinating scientists as they continue to make amazing discoveries.
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The Caltech Space Challenge runs all week.
Two very different galaxies are featured in this space wallpaper taken by the NASA/ESA Hubble Space Telescope—forming a peculiar galaxy pair called Arp 116.
The newest Landsat satellite has opened its eyes.
NASA won't send commands to its various Mars explorers for much of April.
The newest Landsat satellite has opened its eyes.
Jeff Bezos' yearlong quest has been a success.
Scientists don't know what to expect at the solar system's extreme outer reaches.
Curiosity has still not resumed science operations, however.
NASA's Lunar Reconnaissance Orbiter has photographed the tiny craters made by the Grail moon probes.
Contractor may have had access to high-level imaging technology with potential military uses.
The 3-mile-high Mount Sharp is Curiosity's ultimate destination.
Comet ISON may become one of the brightest comets ever seen this coming November.
Curiosity is not yet ready to start the trek to Mount Sharp.
The Red Planet was habitable long, long ago, scientists say.
The NASA/ESA Hubble Space Telescope took this striking space wallpaper of the planetary nebula NGC 5189. The intricate structure of the stellar eruption looks like a giant and brightly coloured ribbon in space. This image was released Dec. 18, 2012.
Solar sailing holds promise for interstellar flight, though daunting challenges must be overcome.
This space wallpaper combines Hubble observations of M 106 with additional information captured by amateur astronomers Robert Gendler and Jay GaBany. Gendler combined Hubble data with his own observations to produce this stunning color image.
The January incident is the fourth known case of an active satellite being struck by orbital debris.
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