Opportunity and Spirit Mars Rovers

The sand-trapped Mars rover Spirit is still making important discoveries.

Spirit rover's right-front wheel, immobile since 2006, surprisingly spins during test.

NASA’s embattled Mars rover Spirit is facing a debilitating wheel problem that could paralyze the long-lived robot.

Mars rover Spirit hit another snag in attempt to free itself when one of its wheels stalled.

Mars rover Spirit hit another snag in attempt to free itself when one of its wheels stalled.

NASA's second attempt to drive stuck Mars rover Spirit results in some small movement.

NASA will make a second attempt to move stuck Spirit Mars rover.

NASA has sent commands to move the stuck Spirit rover on Mars and are waiting to see what progress was made.

NASA plans to send commands to move the stuck Spirit rover on Mars late tonight/early tomorrow.

Mission engineers have their final plans for attempting to extricate the Spirit rover from its sandy Martian trap.

NASA’s Mars rover Spirit is suffering a new bout of amnesia.

Go behind the scenes of NASA's Mars rover mission with rover driver Ashley Stroupe at JPL.

NASA's Opportunity rover came across new meteorite three weeks after leaving another one.

Efforts to free the stuck Spirit rover on Mars have been dragging on since May and today a NASA official said the robot may never get free.

Dust storms over Spirit rover could limit energy resources when dust settles.

A meteorite the size of a watermelon on Mars is revealing new clues into the planet’s environment.

Mars rover Opportunity spots what could be a meteorite on surface of Mars.

NASA engineers hold live webcast Q&A for Free Spirit endeavor.

The Mars Spirit robot may be stuck in sand, but is still sending back amazing images.

Mars geologist Steve Squyres is optimistic about humanity's chances of getting back to the moon — and even to Mars — in the coming decades.