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.

Aliens could already be broadcasting clear signals across the cosmos while humans remain 'utterly blind' to them, according to astronomer Prof. Jon Willis, who argues that our current search ...

Humans are unlikely to sit at the top of the cosmic food chain and would probably be outclassed by any visiting aliens, according to Harvard professor Avi Loeb, who has urged US president Donald Trump ...