Why does its southern hemisphere rise significantly above the smoother northern plains? A groundbreaking study using seismic ...

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an impact thousands of years ago.

Mars' southern hemisphere absorbs a lot of the sun's energy during the Red Planet's spring, and that may be causing Mars' ...

The planet is the seventh largest and is currently inhabited solely by robots. However, the space agency is working hard to ...