'Do all aliens really need sunlight?' ...

For years, the search for alien life has focused on Earth-like planets orbiting distant stars. But this episode explores a ...

After years of discovering exoplanets at a staggering pace, astronomers are now starting to distinguish the simply interesting from the truly promising. A new study highlights a select group of rocky ...

Humans have wondered for centuries whether we are alone in the universe — and a new study suggests that if alien ...

The search for life on another planet is one of the most exciting things in astrophysics. As humanity has searched the ...

When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's habitable zone. Water is a key ingredient for life, and on a planet too close to ...