The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.

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

Deep oceans of magma once sloshed about inside the crust of Mars, seismic measurements taken by NASA's InSight mission ...

NASA’s Perseverance rover has detected complex molecules of carbon on the surface of Mars. These compounds, known as ...

Add Yahoo as a preferred source to see more of our stories on Google. Siccar Point, photographed by the Curiosity rover, is near Mars' Gale Crater. NASA/JPL-Caltech/MSSS; Processing & License: Kevin M ...

NASA’s Mars rover just found more evidence the planet may have sustained life - The stones were found in the same location ...

New findings from rocks inside Jezero Crater add to growing evidence that the Red Planet may once have been habitable.

Mars' distinctive red color comes from the mineral ferrihydrite, which only forms in the presence of cool water, a new study claims. Ferrihydrite also forms at a lower temperature than other minerals ...

NASA wants to send an ambitious fleet of helicopters to soar through Martian skies—but scientists fear the endeavor could crater existing Red Planet research missions.

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A new study suggests that Mars’s red colour is better matched by iron oxides containing water, known as ferrihydrite. Everyone knows Mars is the “red planet,” but a new study is reshaping scientists’ ...