Timeline of Mars Science Laboratory Sun, marking the first time a planetary transit has been observed from a celestial body besides Earth. On June 24, 2014, "Curiosity" completed a Martian year—687 Earth days—after finding that Mars once had environmental conditions favorable for microbial life. On June 27, 2014, "Curiosity" crossed the of its "" and is now in territory that may get even more interesting, especially in terms of Martian geology and landscape (). On July 12, 2014, "Curiosity" imaged the first laser spark on Mars (; video (01:07).) On August 6, 2014, "Curiosity" celebrated its second anniversary since landing on Mars in 2012. 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,