Add Yahoo as a preferred source to see more of our stories on Google. Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a sigh ...

A comet that is likely much, much older than our solar system has spent months traipsing through Earth's cosmic neighborhood. And at long last, NASA has unveiled an unprecedented look at the object, ...

The SpaceX founder shared his take after a Harvard scientist suggested the object, known as 3I/ATLAS, might not be naturally formed. NASA scientists confirmed that 3I/ATLAS is only the third known ...

The mysterious interstellar object, which has been dubbed 3I/ATLAS, has made history by following the most extreme and stretched orbit ever recorded. The discovery reportedly confirms that it comes ...

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Scientists confirmed that the interstellar comet 3I/ATLAS, which passed closest to Earth in December 2025, showed no detectable technosignatures strong enough to suggest it is an alien spacecraft.