Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

Disclosure Day had people talking for its fresh take on alien contact and powerful sci-fi themes. These films follow the same ...

New research suggests sperm whales communicate in a complex language of their own. The implications for animal rights could be enormous.

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...