The coldest place in the known universe is the Boomerang Nebula at −272°C, colder than the cosmic background temperature.
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The largest volcano is on Mars.
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The Oort Cloud is a theoretical shell of icy objects surrounding the solar system.
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The Moon's gravity affects ocean tides.
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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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The Apollo 11 mission successfully landed humans on the Moon.
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Some exoplanets orbit two stars at once.
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