Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien technology.

The idea that a mysterious object streaking through the Solar System might be an alien craft is irresistible, and 3I/ATLAS has become the latest canvas for that fantasy. But when the speculation ...

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system. Despite some suggestions that it could be an alien spacecraft, observations from some ...

The extraterrestrial spacecraft that NASA insists isn't an alien spaceship is, in fact, still an alien spaceship – according to one expert. A tug-of-war has been ongoing for months between NASA and ...

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, ...