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 ...

NASA - The Omega Nebula, M17, The Swan Nebula

NASA - The Omega Nebula, M17, The Swan Nebula

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NASA's Next Generation Moon Rover

NASA's Next Generation Moon Rover

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Comet 'Bites the Dust' Around Dead Star

Comet 'Bites the Dust' Around Dead Star

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NASA - The Eta Carinae Nebula, NGC 3372

NASA - The Eta Carinae Nebula, NGC 3372

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Eskimo Nebula aka Clownface Nebula (NGC 2392)

Eskimo Nebula aka Clownface Nebula (NGC 2392)

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Rocky Mesas of Nilosyrtis Mensae, Mars

Rocky Mesas of Nilosyrtis Mensae, Mars

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Southern Ring Nebula ('Eight-Burst' Nebula)

Southern Ring Nebula ('Eight-Burst' Nebula)

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World Trade Center in New York City - September 11, 2001

World Trade Center in New York City - September 11, 2001

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Bow Shock Near a Young Star, Great Nebula in Orion

Bow Shock Near a Young Star, Great Nebula in Orion

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It's a Rocky World - Artist's Concept

It's a Rocky World - Artist's Concept

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NASA - Saturn's Moon Rhea Also May Have Rings

NASA - Saturn's Moon Rhea Also May Have Rings

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NASA - Earth And Its Moon, Space Shuttle Discovery, 1998

NASA - Earth And Its Moon, Space Shuttle Discovery, 1998

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First Launch from Cape Canaveral on July 1950

First Launch from Cape Canaveral on July 1950

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NASA - Earth From Apollo

NASA - Earth From Apollo

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Jupiter's Great Red Spot, 1979, Voyager 1

Jupiter's Great Red Spot, 1979, Voyager 1

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