Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

"It's going to look different because it didn't come from our solar system and that's what makes it so magical." ...

New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon ...

NASA has unveiled the close-up pictures of an interstellar comet that is the third confirmed object to enter our solar system ...

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

NASA released fresh images on Wednesday of the interstellar object called 3I/ATLAS that astronomers have determined is a ...

NASA is unveiling close-up pictures of the interstellar comet that's making a quick one-and-done tour of our solar system.

As far as physical features, NASA says 3I/ATLAS has speed, color, and direction that are, “consistent with what we’d expect ...

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

"Similar to the asteroid belt, the Kuiper Belt is a region of leftovers from the solar system's early history. Like the ...

Interstellar comet 3I/ATLAS has spent the last several months on a tour of our solar system. NASA spacecraft and telescopes ...