Over the past few days, extremely cold Arctic air and severe winter weather have swept southward into much of the U.S., breaking daily low-temperature records from Montana to Texas. Tens of millions ...
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3I/ATLAS came from a strange, cold world
We already knew interstellar comet 3I/ATLAS came from somewhere far beyond our solar system. Now scientists have more information on how alien that somewhere really is - a corner of the universe ...
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