Space

In most galaxies, observations provide evidence that 90% of the mass is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Data indicates that the majority of the mass-energy in the observable Universe ...

Debris Ring Around Star Fomalhaut (HD 216956)

Debris Ring Around Star Fomalhaut (HD 216956)

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NASA - Lonely Galaxy in NGC 1569

NASA - Lonely Galaxy in NGC 1569

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Out of the Dust, a Planet is Born

Out of the Dust, a Planet is Born

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Astronaut Space Walk Free Fly

Astronaut Space Walk Free Fly

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NASA - Change Of Seasons On Saturn

NASA - Change Of Seasons On Saturn

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Space Station Mir over Earth

Space Station Mir over Earth

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Dusty Stellar Nursery Revealed

Dusty Stellar Nursery Revealed

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Space Shuttle Atlantis Atop NASA's Modified Boeing 747

Space Shuttle Atlantis Atop NASA's Modified Boeing 747

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Space Shuttle Discovery on the Tarmac

Space Shuttle Discovery on the Tarmac

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NASA STS-118 Space Shuttle Mission

NASA STS-118 Space Shuttle Mission

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Venus Craters

Venus Craters

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NASA - Space Shuttle Atlantis

NASA - Space Shuttle Atlantis

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Stellar Ripple near Cartwheel Galaxy

Stellar Ripple near Cartwheel Galaxy

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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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Full View of the International Space Station

Full View of the International Space Station

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