What would aliens actually look like? While simple life forms like bacteria may be common in the universe, complex ...

A two-week expedition off the coast of Brazil has identified 31 previously unknown deep-sea species, many with forms so ...

The Fermi paradox asks why we haven’t found aliens yet. Scientists say the answer may lie in timing, technology, and the vast ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer them a somewhat risky buffet. There is liquid water, as well as salts, ...

Alien: Earth showrunner Noah Hawley clearly didn’t think the franchise was doing enough with the implications of its title. Ridley Scott’s Alien (1979) imagined the kind of nightmare lifeforms that ...

For instance, what if we really are being visited by aliens from other worlds and they turn out to be aggressive, violent, ...