Mars scientists are wrestling with a problem. Ample evidence says ancient Mars was sometimes wet, with water flowing and pooling on the planet's surface. Yet, the ancient sun was about one-third less warm and climate modelers ...
A simple chemistry method could vastly enhance how scientists search for signs of life on other planets.
Scientists used NASA's Curiosity Mars rover in recent weeks to examine slabs of rock cross-hatched with shallow ridges that likely originated as cracks in drying mud.
On the brink of 4600 Sols of a profoundly impactful life, NASA's long lived Opportunity rover celebrates the Christmas/New Year's holiday season on Mars marching relentlessly towards an ancient water carved gully along the ...
Engineers are troubleshooting a snag on NASA's Curiosity that's preventing the rover from moving its robotic arm and driving to another spot on Mars, the space agency said Tuesday.
NASA's Curiosity Mars rover is studying its surroundings and monitoring the environment, rather than driving or using its arm for science, while the rover team diagnoses an issue with a motor that moves the rover's drill.
Every day, Rachel Kronyak walks around the surface of the planet Mars, examining a rock or getting a closer look at a butte framing the horizon.
Two geoscientists at Arizona State University have made a discovery among hot springs in Chile that may spur scientists to revisit a location on Mars explored several years ago by NASA's Spirit rover. The discovery involves ...
The lack of liquid water on the surface of Mars today has been demonstrated by new evidence in the form of meteorites on the Red Planet examined by an international team of planetary scientists.
Laser-zapping of a globular, golf-ball-size object on Mars by NASA's Curiosity rover confirms that it is an iron-nickel meteorite fallen from the Red Planet's sky.