Attention, legal visitors to America: Yer also screwed! 

New data suggests a distant planet may host alien life—but is the biosignature a load of bs?

A guide to the buzziest word in the media—and a lesser known online world it has spawned.

A 7.7 magnitude earthquake has devastated most of the nation, and killed at least 1,700.

The universe may collapse in a ‘big crunch’. If confirmed, it would upend known laws of physics.