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What is the coldest thing on earth?

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Quick Answer

There is no one constant coldest thing on Earth, but a copper cube nearly reached coldest temperature possible. Using advanced technology, scientists managed to cool this copper cube to the lowest temperature ever recorded on Earth.

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Full Answer

Scientists used something called a cryostat, which was created to keep objects at the lowest temperature possible. Using this, an 880-pound piece of copper was frozen to just above 0 degrees Kelvin. Zero degrees Kelvin is known as absolute zero and is believed to be the coldest temperature that is physically possible to reach. By bringing this copper cube to such low temperatures, scientists not only broke a record but also may be able to do advanced research on subatomic particles that is only possible at near absolute zero.

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