Spirit And Opportunity By The Numbers

This infographic highlights NASA’s twin robot geologists, the Mars Exploration Rovers (MER) Spirit and Opportunity. The rovers landed on the Red Planet in 2004, in search of answers about the history of water on Mars. Spirit concluded its mission in 2010. Opportunity last communicated with Earth on June 10, 2018, as a planet-wide dust storm blanketed the solar-powered rover's location on Mars.