Opportunity (rover) Opportunity (rover) Opportunity, also known as MER-B (Mars Exploration Rover – B) or MER-1, is a robotic rover active on Mars since 2004. Launched on July 7, 2003 as part of NASA's Mars Exploration Rover program, it landed in Meridiani Planum on January 25, 2004, three weeks after its twin "Spirit" (MER-A) touched down on the other side of the planet. With a planned 90 sol duration of activity (slightly more than 90 earth days), "Spirit" functioned until getting stuck in 2009 and ceased communications in 2010, while "Opportunity" was active as of June 10, 2018 when a dust storm
Mars Exploration Rover Reddit that appeared to depict a human penis carved into the Martian dirt. On May 16, 2013, NASA announced that "Opportunity" had driven further than any other NASA vehicle on a world other than Earth. After "Opportunity's" total odometry went over , the rover surpassed the total distance driven by the Apollo 17 Lunar Roving Vehicle. On July 28, 2014, NASA announced that "Opportunity" had driven further than any other vehicle on a world other than Earth. "Opportunity" covered over , surpassing the total distance of driven by the Lunokhod 2 lunar rover, the previous record-holder. On March 23, 2015,