Language and radio signals may not matter to aliens. Instead, they might be using patterns to leave a biological fingerprint.

If aliens disclose tomorrow, is it 'Arrival''s calm contact, 'Don't Look Up''s denial, or 'Independence Day''s invasion? We break down the real scenarios fans are debating.

A layer of molten rock deep inside some rocky planets may be doing more than shaping their interiors. New research points to ...

Interstellar, Alien, and Back to the Future are all among the all-time greatest sci-fi movies that deliver everything you ...