Under one million years old, “Elias 2-24b” is now the youngest exoplanet ever observed, and it may force researchers to reevaluate theories about how planets are formed.

Tom Cruise’s strangest movie was sold as a gag reel. It’s actually the most unsettling portrait of our tech and climate ...

A small probe has no engine to slow it down and no way to be steered from Earth. If it works, the mission could reveal what ...