The mysterious space rock suggested to be a hostile alien spaceship was due to make its closest approach to Earth today (Dec 19). The rare interstellar visitor, designated Comet 3I/ATLAS, was ...

Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a sigh of relief. Echoing what NASA officials have long said, a team of ...

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, ...

Comet 3I/ATLAS was expected to come within 130 million miles of the sun on Oct. 30. For the time being, 3I/ATLAS will remain on the opposite side of the sun from Earth, making it impossible to observe ...