The surface of Mars is extremely cold, irradiated, and desiccated. But at one time, the planet was much warmer and wetter, ...

A crater on Mars has a bright patch of ice. It's the second time in over a decade that the crater and ice has been observed ...

Mars may have experienced rainfall and river flow billions of years ago, reshaping the Red Planet's surface and supporting a ...

While it may seem like another dusty region of Mars, fresh data from a deep-penetrating radar system tells a very different story. This giant deposit might be hiding a frozen ocean under layers of ...

A new study from geologists at the University of Colorado Boulder paints this picture of a Red Planet that was relatively ...

The Perseverance rover has found some intriguing samples on the red planet. Here's what they might reveal about the origins ...

In those drill sites, Curiosity detected deposits containing an iron carbonate material called siderite. According to Ben ...

suggesting that conditions were too cold for ice to melt at that time. More recent observations have pointed to several regions on Mars with potential eskers [winding ridges of sand and gravel ...

Mars is also a dynamic planet with seasons, polar ice caps, canyons, extinct volcanoes, and evidence that it was even more active in the past. It is one of the most explored planets in the solar ...

NASA has revealed a 328-foot-wide hole on Mars, potentially a gateway to subterranean caves that could harbor alien life.

dry ice waves, water waves, and dust storms. The biggest challenge? Identifying images with and without clouds among hundreds of thousands of photos—since clouds are rare and scattered on Mars.