Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

Our best models of the cosmos don't add up — but that could change if the universe is actually made of a viscous 'fluid,' a ...

Most starships in Star Trek are able to travel across the galaxy at faster-than-light speeds through the use of warp drives ...

Physicists are rapidly expanding the traditional menu of matter beyond solids, liquids, gases and plasmas, uncovering exotic ...