The Earth's rotation is gradually slowing over time.
Fact #105
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The Fermi Paradox questions why extraterrestrial life has not been observed.
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The universe has no center.
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The universe is expanding faster.
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Cosmic rays constantly bombard Earth from space.
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The International Space Station is one of the most complex engineering projects ever built.
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The Hubble Space Telescope has captured deep images of distant galaxies.
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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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