NASA has discovered a new world, named Gliese 12 b. It is roughly the size of Earth, lies in the habitable zone, and orbits every 12.8 days.

Astronomers have confirmed the existence of four rocky planets orbiting Barnard’s Star, our nearest solitary stellar neighbor just six light-years away. Using ultra-sensitive instruments, scientists ...

Euclid is on a quest to unravel one of the universe’s greatest mysteries: why it's expanding faster and faster. With help ...