NBC News' Gadi Schwartz reports on "3I/ATLAS," mysterious outer space object that is thought to be billions of years old, ...

"The discovery of interstellar objects over the past decade offers new opportunities for humanity to send time capsules to ...

Astronomers continue to track the mysterious interstellar visitor Comet 3I/ATLAS as it speeds through the solar system, using ...

In the velvet darkness of our cosmic backyard, a ghost has appeared—and it may be older than the stars we know. Discovered on ...

The night sky has always been a place where we can see our biggest mysteries. But the arrival of the third known interstellar ...

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's everything to know about it.

Is NASA hiding the truth about 3I/ATLAS? Explore the 'cosmic rebel' defying physics and why legal experts say a lawsuit may ...

"It points in the same direction as the weaker jet in the new Hubble images from December 12 and 27, 2025, and is accompanied ...

I/Atlas, the interstellar object we’ve been following at Euro Weekly News, is reaching its closest point to Earth as ...

I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object ...

Space agencies around the globe have launched an unprecedented wave of planetary defense exercises, all centered on a mysterious interstellar visitor that refuses to behave like anything scientists ...

A mysterious object that a controversial scientist claims could be an alien battleship reaches its closest point to Earth on ...