There are more stars in the universe than grains of sand on Earth.
Fact #1680
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The Rosetta mission successfully landed a probe on a comet in 2014.
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Saturn has dozens of known moons.
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The observable universe is about 93 billion light‑years wide.
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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 Sun will eventually expand into a red giant.
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The Earth's atmosphere gradually thins into outer space.
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Black holes can bend light through gravitational lensing.
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