Until Oct. 24, NASA's Mars Exploration Rover had gone more than six months without an episode of amnesia-like symptoms like those that appeared on four occasions earlier this year.
Engineers using test rovers on Earth to prepare for extracting the sand-trapped Spirit rover on Mars have added a new challenge to their preparations.
Tests on Earth simulating Spirit's predicament on Mars have reinforced understanding that getting Spirit to rove again will be very difficult.
03.11.09 - Congress passed a resolution Wednesday recognizing scientific contributions of NASA's Mars Exploration Rovers, and commending the JPL and Cornell University teams.
01.15.09 - Mars Exploration Rovers have new life on the likes of "Second Life," "YouTube," "Unmannedspaceflight.com," and "Facebook."
01.02.08 - NASA's Spirit rover is spending its fourth anniversary on Mars at the northern edge of a low plateau. It landed on Mars Jan. 4, 2004, Universal Time (Jan. 3, 2004, Pacific Time).