Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a ...

Harvard scientist Avi Loeb says humans are not at the cosmic top table and calls for full release of UFO data, arguing that proof of extraterrestrial visitors could force us to rethink our future.

If humans ever receive a message from intelligent aliens, the biggest challenge may not be how far away they are, but how to communicate at all. Our nearest star system is more than four light-years ...

When astrobiologists are asked what aliens might look like, many now point not to distant galaxies but to some of the ...

Humans have always been fascinated with space. We frequently question whether we are alone in the universe. If not, what does intelligent life look like? And how would aliens communicate? How could ...