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Interstellar comet 3I/ATLAS isn't an alien spacecraft, astronomers confirm. 'In the end, there were no surprises.'

Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

3I/ATLAS discovery: What the 'impossible' water content means for future life in space

Something strange is hurtling through our cosmic backyard, and it is refusing to play by the rules. When astronomers first ...