Space

Outer space represents a challenging environment for human exploration because of the dual hazards of vacuum and radiation. Microgravity also has a negative effect on human physiology that causes both muscle atrophy and bone loss. In addition to these health and environmental ...

Space Shuttle Endeavour Launch

Space Shuttle Endeavour Launch

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Cluster of Galaxies in the Distant Cosmos

Cluster of Galaxies in the Distant Cosmos

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Surface Of Venus

Surface Of Venus

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NASA - The Horsehead Nebula, B33, Orion Nebula

NASA - The Horsehead Nebula, B33, Orion Nebula

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NASA Space Shuttle Discovery Is Ready for Launch

NASA Space Shuttle Discovery Is Ready for Launch

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Earth Seen from the International Space Station

Earth Seen from the International Space Station

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Cosmic Epic Unfolds in Infrared (Eagle Nebula)

Cosmic Epic Unfolds in Infrared (Eagle Nebula)

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Columbia STS-50 Orbiter Vehicle Liftoff

Columbia STS-50 Orbiter Vehicle Liftoff

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NASA - Cartwheel Galaxy, Head-On Collision

NASA - Cartwheel Galaxy, Head-On Collision

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View of Pacific Ocean from Space

View of Pacific Ocean from Space

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Eye Of The Storm, Hurricane Elena, September 1, 1985

Eye Of The Storm, Hurricane Elena, September 1, 1985

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Phoebe - Comet Moon of Saturn

Phoebe - Comet Moon of Saturn

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Washington from International Space Station

Washington from International Space Station

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Ingredients for Life - Complex Organic Molecules

Ingredients for Life - Complex Organic Molecules

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Dust and the Helix Nebula (NGC 7293)

Dust and the Helix Nebula (NGC 7293)

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