The light you see from some stars today began traveling before humans existed.
Fact #1808
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The Earth's core temperature rivals the surface of the Sun.
Fact #191 · Space
The Earth is not perfectly round.
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The largest volcano is on Mars.
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Supernovae can briefly outshine entire galaxies.
Fact #1617 · Space
Neutron stars are so dense that a single teaspoon would weigh billions of tons on Earth.
Fact #1782 · Space
Light from distant galaxies shows us the past.
Fact #1682 · Space
Saturn's rings are made primarily of ice particles and rocky debris.
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The Kuiper Belt contains many icy bodies beyond Neptune.
Fact #1619 · Space
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