An illustration of the hazy, pink-hued gassy giant GJ504b, which may be a massive planet or a brown dwarf orbiting a nearby ...

An astrophysicist who searches for life in the Universe unpacks Steven Spielberg's UFO blockbuster Disclosure Day ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

"Measurements of two mudstones show hundreds of organic detections, making this the most robust organic detection in Jezero ...

"This is a detective story that can be resolved with better data," Harvard astrophysicist Avi Loeb told Newsweek.

As demand for disclosure on nonhuman intelligence accelerated, Steven Spielberg was inspired to explore cover-ups regarding ...

Barack Obama triggers a wave of alien speculation with a casual sentence in a podcast. Now the former US president is clarifying what he really meant.

Area 51 is back in the spotlight after a swarm of earthquakes near the Nevada military base. But the real story of Area 51 is ...

The US Supreme Court ruled Tuesday that immigration officers are not required to have clear and convincing evidence that a returning lawful permanent resident committed a crime involving moral ...

Want to dive deeper into Brandon Sanderson’s science fiction books? Here are his standout novels in the genre.