Add Yahoo as a preferred source to see more of our stories on Google. Astronomers have witnessed the birth of a solar system beyond our own for the first time. An international team of researchers has ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

PARIS, France — Astronomers said Wednesday they had observed the moment when planets start forming around a distant star for the first time, revealing a process that sheds light on the birth of our ...

Hubble observations reveal a giant, turbulent planet-forming disk that may reshape theories of how planetary systems develop.