When Spirit dropped through the thin Martian air and bounced to a stop inside Gusev Crater, it did more than survive a high‑risk landing. It opened a new era in which rovers became the primary way ...

Scientists at Pasadena's Jet Propulsion Laboratory are giving up on the Martian rover Spirit. The six-wheeled robot has been mired in sand for about two years, and the final commands issued early ...

PASADENA, Calif. -- NASA's Spirit rover stopped transmitting data from Mars for more than 24 hours, mission managers said Thursday, calling it an "extremely serious anomaly." NASA received its last ...

When humans visit Mars later this century, they will alight on its ochre-hued sands with the same spirit of adventure and thirst for opportunity as a young girl whose essay was selected from among ...

Just past the halfway point of its three-month prime mission, NASA’s Mars Exploration Rover Spirit has achieved several scientific firsts, but may still have its best “Eureka!” moments in front of it.

Meet a robot dog named Spirit that's being tested for space Researchers in Oregon are testing a quadrupedal robot, named Spirit, to see if it could handle going to Mars or the moon.

A Q&A with Pete Theisinger, mananger of the Mars Science Laboratory mission, which will drop a car-sized rover onto the Red Planet in August 2012. It's now been a full year since NASA's Mars rover ...