On Earth, deep-sea vents may have given rise to the planet’s first life. But nothing of the sort seems to be happening at the ...

Astronomers tracking the skies around our planet have picked up two very different cosmic companions: a vast interstellar ...

NASA has quietly hit pause on what it billed as its first dedicated hunt for alien biosignatures, reacting to fresh data that ...

Comet 3I/ATLAS, only the third interstellar object ever observed, is making its final pass through our skies, offering a rare ...

The SYFY miniseries Childhood's End, based on Arthur C. Clarke's alien invasion novel, has an ending that you won't be able ...

So if we’re right, each former human is now essentially a radio transmitter and receiver. One plurb sends out a signal that ...

New polarimetry data on interstellar comet 3I/ATLAS reveals bizarre refractory dust, proving this alien visitor formed in a ...

Class is in session at "Star Trek: Starfleet Academy," with a fresh crop of cadets entering Starfleet's training school. They ...