Posted by tourdemars to Mars Exploration Rovers at September 28, 2004 09:14 AM

Rolling, rolling, rolling. Keep those Mars rovers rolling. You can almost hear the crack of a Martian whip. Since January, NASA’s Spirit and Opportunity robots have been wheeling and dealing with the red planet. Last week they had their driving licenses renewed for an additional six months. The science results already have changed how researchers view Mars, and the mission could be far from over.