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Do you think there's anybody up there? What if someone up there is wondering what it's like down here?

If new theories are to be believed, NASA may have detected an alien craft whizzing through the solar system.

While it may not be an alien, it is a mysterious comet that has left experts baffled and wondering where it originated from.

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The object has been named 3I/ATLAS and it is only one of three confirmed interstellar objects.

Qicheng Zhang, a postdoctoral fellow at Lowell Observatory, told Weather.com: “This comet in particular is interesting since it's actually from outside of our solar system, the ‘i’ in 3I stands for interstellar, which means it's an interstellar object.

"In this case,

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