The second rovers to land on Mars were Spirit and Opportunity as part of the Mars Exploration Rover Mission. Touchdown occurred in 2004 with a mission designed to last 90 Martian days. Contact with Spirit was finally lost in 2010 while Opportunity continues to operate today, over eight years later. You can learn more about the Mars Exploration Rovers at the official NASA/JPL Mars Exploration Rovers website. Minifig scale rover by apojove.