Scientists have discovered an 'alien' material inside a massive crater on Earth, sparking new questions about how life may ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for ...

The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

Scientists propose that a moon base could act as an isolated first line of biological defense against extraterrestrial ...

Spielberg's new film imagines what might happen if the existence of non-human intelligence was revealed to the world.

Steven Spielberg discusses his new UFO film "Disclosure Day" on Michelle Obama's podcast, saying it explores whether aliens have already reached Earth.