New research suggests that a massive, unidentified object might have passed through our Solar System billions of years ago, ...

A new study suggests that the explosive deaths of the universe's earliest stars created surprising quantities of water that ...

High radiation during a time of frenzied star formation in the Milky Way left one stellar population with few chances to form planets, a study reports.

By now you’ve likely either heard or maybe caught a glimpse of a rare astronomical phenomenon known as a “planetary parade.” ...