Quite a bit of movie magic made "Alien" the sci-fi horror classic it is -- but one of its biggest challenges was solved with ...

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

Scientists and NASA officials insist the object is a natural comet, not alien technology. Recent observations found no radio signals from the comet that would suggest it was artificial. The comet made ...

A team of astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spaceship. The comet was confirmed in July 2025 as the third known object to enter our solar ...