When a hunk of ice from another star system hurtles through our cosmic neighborhood, astronomers pay attention. When that ...

A research team has developed a new approach to detecting life beyond Earth that does not rely on identifying specific ...

Explore how cutting edge telescopes, AI, and new detection methods are transforming the extraterrestrial life search and ...

(cokada/iStock/Getty Images) Alien megastructures built to harvest stellar energy or alter the orbits of stars may be ...

Trump has ordered a UFO data release. But if aliens exist, what would they think of us? - For generations, human beings have ...

Comet 41P/Tuttle-Giacobini-Kresak has begun acting a little unusually, but there are likely natural explanations before we go ...

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.