A nutrition scientist applies metabolism, biology and food science to one of science fiction's oldest questions.

Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a government website depicts non-citizens as extraterrestrials.

And if aliens made of different stuff potentially possess consciousness, then why not minds made of silicon, metal, and ...

Maybe we did not create life in the biological sense, but maybe we created something stranger: an alien form of ...

Astrophysicist Neil deGrasse Tyson has renewed calls for greater government transparency on alleged extraterrestrial evidence ...