Let’s get one thing out of the way. I’m your resident science writer. Alien comets, tiny universes, and body parts are the ...

In fact, throughout history there have been numerous reports of supposed alien spacecraft sightings that have turned out to ...

Researchers propose turning a future NASA moon base into a quarantine station that would screen space samples before they ever reach Earth.

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

Left to Right: Steven Yeun in "Nope," the alien in Steven Spielberg's "E.T." and Scarlett Johansson in "Under the Skin" (Universal Pictures / A24) It didn’t take long for stories about ...

Scientists are now developing spinning space stations with artificial gravity that could take astronauts deeper into the Solar System in the 2030s, reshaping how long humans can stay in space and how ...

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home planet.

Half a century after "Close Encounters of the Third Kind," the director returns to the subject of UFOs with "Disclosure Day." His science fiction films are informed by his fascination with alien encou ...