It came from the dark, quiet parts of interstellar space, maybe from a place where the sun doesn't have much of an effect. It ...

In the vast, quiet theatre of deep space, not many things capture the human imagination like a traveler from another world.

Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

Is 3I/ATLAS a comet or an alien ship? Harvard's Avi Loeb warns of a 'serial killer' visitor as the interstellar object makes ...