3I/ATLAS captured the world's attention last month as the comet raced past the Earth, but some believed that it could have ...

The mysterious interstellar object 3I/ATLAS may not be behaving like any comet science has seen before - and one new image suggests it could be more like an alien spaceship than a natural ice-ball.

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 ...