An interstellar trespasser known as 3I/ATLAS is almost certainly a comet. So, why do so many people think it's ...

The foreign interstellar guest is on a tour of our solar system and is about to depart soon. Nobody knows where it came from.

Because this comet is so rare, NASA is utilizing multiple spacecraft and telescopes to observe it. Since its discovery on ...

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NASA is providing more images and information about the interstellar object that's passing through our solar system right now ...

NASA released fresh images on Wednesday of 3I/ATLAS, that astronomers determined is a comet probably even older than our solar system, as officials dismissed speculation of it being an alien ...

Discovered over the summer, the comet known as 3I/Atlas is only the third confirmed object to visit our corner of the cosmos ...

Comet 3I/ATLAS was first detected in July, sparking a flurry of interest among scientists and in amateur astronomy circles.

WASHINGTON >> NASA released fresh images today of the interstellar object called 3I/ATLAS that astronomers have determined is ...

After weeks of silence, NASA has officially dismissed speculation that 3I/ATLAS has anything to do with aliens.

With the government reopened, the space agency at last released pictures captured by a fleet of government spacecraft of an ...

NASA just dropped a trove of new images of interstellar Comet 3I/ATLAS, as seen by some of the space agency’s spacecraft. The ...