When the object now known as 3I/ATLAS was flagged by automated sky surveys, it first looked like another distant icy body drifting through the outer solar system. Further tracking quickly changed that ...
The comet 3I/ATLAS is taking a long holiday journey this year. It's visiting from another solar system altogether. It's the third interstellar object recorded passing through our solar system.
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 interstellar visitor may still have a few things to tell us before it leaves our solar system.
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