The solar system’s smallest planet is just now becoming visible before dawn. Bright Jupiter and Venus point the way.

A rare sight is lighting up the early-morning sky this week as Venus and Jupiter appear side-by-side in a close planetary ...

A new study finds that liquids other than water might be able to support life on worlds beyond Earth, potentially expanding ...

Scientists from MIT explore how life could exist without water, using ionic liquids in extreme planetary environments.

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...