A year on Mercury is just 88 Earth days long.
Fact #10049
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Saturn could float in water because its density is low.
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Solar flares originate from the Sun's surface.
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Venus has surface temperatures hot enough to melt lead.
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Neutron stars are so dense that a single teaspoon would weigh billions of tons on Earth.
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The Earth's magnetic field helps prevent atmospheric loss.
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The observable universe is about 93 billion light‑years wide.
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Black holes can slow time so much that seconds near them equal years far away.
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The Milky Way and Andromeda galaxies are on a slow collision course.
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