Step inside the strange world of a superfluid, a liquid that can flow endlessly without friction, defying the common-sense ...

A macroalgae called sargassum is spoiling coastlines from Cancún to Tulum. Here’s how researchers and resorts are combating the noxious bloom. Masses of rotting seaweed blanket the Fundadores Park ...

So, what exactly is the three-body problem, and is there any hope of solving it? Click through this gallery to find out.