Water on Mars of these salts". NASA also reported that Jake M rock, a rock encountered by "Curiosity" on the way to Glenelg, was a mugearite and very similar to terrestrial mugearite rocks. On December 9, 2013, NASA reported that Mars once had a large freshwater lake inside Gale Crater, that could have been a hospitable environment for microbial life. On December 16, 2014, NASA reported detecting an unusual increase, then decrease, in the amounts of methane in the atmosphere of the planet Mars; in addition, organic chemicals were detected in powder drilled from a rock by the "Curiosity" rover. Also, based on
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,