One hundred twenty light-years from us, there is an exoplanet that can potentially host life. It's called K2-18b, and it's the world you'd want to visit. K2-18b isn't exactly like Earth. It's more ...

High-energy particles zipping through the cosmos are harmful to life on Earth, but scientists think it could be food for potential alien life elsewhere. Saturn's moon Enceladus (shown here in a 2006 ...

Is it alien? Is it natural? Those questions have followed the interstellar comet known as 3I/ATLAS since it entered our solar system last year from beyond our own star system. A new study released ...