Scientists identify a “bathtub ring” feature on Mars that may indicate an ancient ocean, based on landform analysis and orbital data.

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a ...

Scientists edge closer to answering Mars’ biggest question: Did life ever exist on the red planet? Here's the latest from two ...

"The possible existence of an ocean suggests that a large body of water may have persisted for a long time. That could have been an important ingredient for life." When you purchase through links on ...