Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets ...

From the Star Wars spin-off The Mandalorian to the classic series Star Trek: The Next Generation, these are the best sci-fi shows that feature aliens.

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 ...

This is the show I thought we were getting! The latest "Alien Earth" is a flashback episode, and it absolutely blew me away. This is my full spoiler review for Episode 5, "In Space No One..." and why ...

Pioneering astronomer Carl Sagan once wrote that "The universe is a pretty big place. If it's just us, seems like an awful waste of space." On screen, the vastness of the universe and the ...

Astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spacecraft. 3I/ATLAS was confirmed as the third known object to enter our solar system from interstellar ...