A small, uninhabited island in the Pacific Ocean has stirred up widespread speculation online after Google Earth displayed it ...

"Ice in the rest of the universe has long been considered a snapshot of liquid water – that is, a disordered arrangement fixed in place. Our findings show this is not entirely true." ...

Imagine waking up one morning to find that Earth’s atmosphere has vanished—gone, as if erased by an invisible hand. Suddenly, ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...