When I texted my trombone-major boyfriend to ask if he wanted to go see the Seattle Symphony perform Gustav Holst’s The ...

The current scientific consensus points to the existence of a planetary system for every star in our galaxy. Astronomers ...

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy.

The habitable zone around the star HD 20794 (in green) as well as the trajectory ... more than 7,000 such planets have been detected in our Galaxy. But there could still be billions more to discover!