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 ...

A Tectonic Feast on Icy Surface of Enceladus

A Tectonic Feast on Icy Surface of Enceladus

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Nukuoro Atoll, Caroline Islands, Papua New Guinea

Nukuoro Atoll, Caroline Islands, Papua New Guinea

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NASA - the Andromeda Galaxy, M31, Spyral Galaxy

NASA - the Andromeda Galaxy, M31, Spyral Galaxy

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Out of the Dust, a Planet is Born

Out of the Dust, a Planet is Born

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Rub' al Khali Sand Desert, Arabian Peninsula

Rub' al Khali Sand Desert, Arabian Peninsula

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It's One Small Step for a Men...

It's One Small Step for a Men...

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Disrupted Spiral Galaxy Arp 188, the Tadpole Galaxy

Disrupted Spiral Galaxy Arp 188, the Tadpole Galaxy

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Seven Sisters Pleiades Star Cluster (M45)

Seven Sisters Pleiades Star Cluster (M45)

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From the Ashes of the First Stars - Primordial Quasar

From the Ashes of the First Stars - Primordial Quasar

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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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Stars at the Galactic Center, Milky Way Galaxy

Stars at the Galactic Center, Milky Way Galaxy

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Aldrin Gazes at Tranquility Base

Aldrin Gazes at Tranquility Base

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Black Holes Have Simple Feeding Habits (Galaxy M81)

Black Holes Have Simple Feeding Habits (Galaxy M81)

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Global Satellite Weather Forecast Picture

Global Satellite Weather Forecast Picture

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AE Aurigae - the Flaming Star Nebula

AE Aurigae - the Flaming Star Nebula

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