The Milky Way is on a slow collision course with Andromeda.
Fact #143
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Saturn has dozens of known moons.
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The Earth's rotation is gradually slowing over time.
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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 observable universe is about 93 billion light‑years wide.
Fact #1789 · Space
The observable universe is about 93 billion light‑years wide.
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The Earth's rotation speed varies slightly over time.
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Exoplanets have been discovered in habitable zones around distant stars.
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