LOS ANGELES — NASA's flagship mission to land a nuclear-powered, next-generation rover on Mars is facing development problems and ballooning costs that could threaten its scheduled launch next year.

Each spring, when the winter frost departs, the bulbous bodies and sprawling legs of “spiders” appear across Mars’ southern hemisphere. They’re known as araneiform terrain, and scientists at NASA’s ...

The precious Mars samples collected by the Perseverance rover could be coming to Earth sooner rather than later. When you purchase through links on our site, we may earn an affiliate commission.

Earth microbes trying to make it to Mars must survive sterilization in NASA's clean rooms, harsh cosmic rays during months of space travel, and the Red Planet's unforgiving surface environment. But ...

In a recent update from the Mars Science Laboratory, Curiosity’s activities during Sols 4731-4742 have marked a significant step in the rover’s ongoing exploration of Mars. The team at NASA’s Jet ...

NASA’s Mars Science Laboratory (MSL) has successfully completed a set of rigorous actuator tests, which agency managers hope is a sign that the problem-plagued rover mission has finally turned a ...

It’s an age-old question. Was there ever life on Mars? Earth just got closer to an answer — maybe. A rover built and managed in Southern California, with a mission to understand the Red Planet has ...

Rocket Lab built a pair of small Mars science orbiters, which are awaiting a new launch date. The company is now hoping to land on Mars as well to retrieve rock and soil samples for NASA and ESA.