NASA Technicians do final checks on NASA's Spirit rover in this image from March 28, 2003. The rover - and its twin, ...

A Phenomenon First Spotted in 1997 NASA’s first glimpse of these twilight clouds came over two decades ago, when the Pathfinder mission spotted them in 1997.

While the Martian clouds may look like the kind seen in Earth’s skies, they include frozen carbon dioxide, or dry ice. Red-and-green-tinted clouds drift through the Martian sky in a new set of ...

The rock has hundreds of spherules on it, some of which have tiny pinholes. NASA's Perseverance rover has encountered another rock on Mars that has left scientists puzzled. Named "St. Pauls Bay ...