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Cubic zirconia only forms under extreme temperatures, like those produced when an asteroid impacts Earth

Cubic zirconia, a popular diamond substitute, only occurs naturally under extreme conditions. Finding cubic zirconia in ...
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Interstellar invader Comet 3I/ATLAS is packed with water ice that could be older than Earth

Scientists have examined the interstellar invader 3I/ATLAS, finding evidence that it is packed with water that could be older ...