Science fiction often shows aliens with human features like eyes, limbs, and faces. But science has a reason for questioning this idea. Through convergent evolution, similar environments and physical ...

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 ...

In 1967, astronomers thought they had finally heard from the neighbors. They intercepted a signal so regular and precise it seemed impossible for it to be natural. But the excitement didn’t last.

A chilling theory claims Grey aliens are not real beings at all but engineered biological shells designed to protect the ...