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

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on? When you purchase through links on our site, we may earn an affiliate commission ...

Astronomers have found what appears to be one of the strangest known worlds in the universe. It orbits a type of rapidly spinning neutron star called a pulsar – this in itself is unusual, but it is ...