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 ...

New World - Hypothetical Planet Around a Cool Star

New World - Hypothetical Planet Around a Cool Star

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Crescent Earth Rises Above the Lunar Horizon, Apollo 17

Crescent Earth Rises Above the Lunar Horizon, Apollo 17

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Mountains of Creation, Spitzer Space Telescope

Mountains of Creation, Spitzer Space Telescope

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Satellite Image Florida Everglades

Satellite Image Florida Everglades

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A Tectonic Feast on Icy Surface of Enceladus

A Tectonic Feast on Icy Surface of Enceladus

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Seven Sisters Pleiades Star Cluster (M45)

Seven Sisters Pleiades Star Cluster (M45)

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Alien World, Gas-Giant Exoplanet Space Art

Alien World, Gas-Giant Exoplanet Space Art

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Mt. Everest, the Tallest Mountain in the World

Mt. Everest, the Tallest Mountain in the World

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Andromeda's Galaxy Active Core

Andromeda's Galaxy Active Core

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Galaxy Triplet ARP 274 in NGC 5679

Galaxy Triplet ARP 274 in NGC 5679

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Nukuoro Atoll, Caroline Islands, Papua New Guinea

Nukuoro Atoll, Caroline Islands, Papua New Guinea

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NASA - Total Solar Eclipse

NASA - Total Solar Eclipse

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Ancient Lake Uvs Nuur Basin in Mongolia

Ancient Lake Uvs Nuur Basin in Mongolia

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Earth from Space - UFO Lying on the Bottom of The Baltic Sea?

Earth from Space - UFO Lying on the Bottom of The Baltic Sea?

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Ephemeral Lake Carnegie in Western Australia

Ephemeral Lake Carnegie in Western Australia

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