In 2017, an interstellar object zipped through our solar system and instantly triggered the most predictable headline: aliens. But the real mystery wasn’t the shape—it was the motion. It accelerated ...

Add Yahoo as a preferred source to see more of our stories on Google. Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a sigh ...

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 ...