Moons orbiting sunless rogue planets could harbor liquid water oceans for up to 4.3 billion years, sustained by dense hydrogen atmospheres and tidal heating.

The latest search for life on the headline–making exoplanet K2-18 b has come up empty. But the team says that they have developed a framework that could shape how scientists hunt for extraterrestrial ...

Microbes that flourish in boiling hydrothermal vents, bone-dry desert sediments, and radiation-blasted Antarctic rock are forcing scientists to rethink where life can and cannot exist. These ...

The Colorado company Lux Aeterna wants to help open up the space economy with a fleet of fully reusable satellites, and it just raised to some money to help make that happen.