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 ...

Dark Matter Ring in Galaxy Claster CL0024-17

Dark Matter Ring in Galaxy Claster CL0024-17

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NASA - International Space Station

NASA - International Space Station

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U.S. Flag on Moon (Apollo 11)

U.S. Flag on Moon (Apollo 11)

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Purple Haze in Abell 1689, Massive Cluster of Galaxies

Purple Haze in Abell 1689, Massive Cluster of Galaxies

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NASA - Space Shuttle Atlantis

NASA - Space Shuttle Atlantis

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View of Pacific Ocean from Space

View of Pacific Ocean from Space

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The Pleiades Star Cluster (Messier 45)

The Pleiades Star Cluster (Messier 45)

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Rosette Nebula in the Constellation Monoceros

Rosette Nebula in the Constellation Monoceros

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Echoes from the Edge - Variable Star V838 Monocerotis

Echoes from the Edge - Variable Star V838 Monocerotis

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NASA - Lonely Galaxy in NGC 1569

NASA - Lonely Galaxy in NGC 1569

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NASA - Mars, Dust Storms, 2001

NASA - Mars, Dust Storms, 2001

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Chaotic Beauty in Constellation Perseus, NGC 1333

Chaotic Beauty in Constellation Perseus, NGC 1333

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Southern Ring Nebula ('Eight-Burst' Nebula)

Southern Ring Nebula ('Eight-Burst' Nebula)

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Cluster of Galaxies in the Distant Cosmos

Cluster of Galaxies in the Distant Cosmos

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NASA - Earth, Moon, Hubble

NASA - Earth, Moon, Hubble

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