Modern astrobiology suggests that alien life would evolve under many of the same ruthless pressures that shaped organisms on ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Steven Spielberg's claims that aliens have already visited Earth have drawn a mixed but pointed scientists' reaction this week, with astrophysicists in the UK and Australia stressing that while ...

Yuki Ikeda's four-year manga series launched its anime adaptation on Netflix worldwide today, and the premise hiding behind its cute-vs-gritty visual contrast turns out to rest on a coherent argument ...

Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

Explaining the passage of time has been a gnarly problem in physics basically forever, but physicist and computer scientist ...

Forget Hollywood: aliens should look as different to us as we do to bananas, saysdeGrasse Tyson ...

Professor Carol Oliver suggests that time dilation, a cosmic phenomenon, may deter aliens from visiting Earth, as ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

Harvard astrophysicist Avi Loeb has been appointed as the head of a new White House group to study UFOs, or unidentified ...

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...