There are signals from space that scientists still cannot explain.
Fact #2244
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Mercury has extreme temperature differences.
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The Sun will eventually expand into a red giant.
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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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Mercury has no substantial atmosphere to trap heat.
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The Wow! signal was a strong radio signal detected in 1977 that has never been fully explained.
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Space is completely silent.
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The Milky Way contains regions of active star formation.
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