With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

Far from our solar system, astronomers have finally watched a star consume one of its own planets, catching in real time a ...

In the first for the exoplanetary community, scientists have announced four new small Earth-like planets around Barnard's Star, just six light-years from our world. The four planets are all smaller ...