Opportunity (rover) a geographic feature named "Cape York". The Mars Reconnaissance Orbiter had detected phyllosilicates there, and the rover analyzed the rocks with its instruments to check this sighting on the ground. This structure was analyzed in depth until summer 2013. At May 2013 the rover was heading south to a hill named "Solander Point". "Opportunity"s total odometry as of June 27, 2016 (sol 4417) was , while the dust factor is 0.725. In December 2014, NASA reported that "Opportunity" was suffering from "amnesia" events in which the rover fails to write data, e.g. telemetry information, to non-volatile memory. The hardware failure
Timeline of Mars Science Laboratory atmosphere. This creates wind, which in turn stirs up more dust. This results in a feedback loop that scientists are still trying to understand. NASA reported on June 20, 2018 that the dust storm had grown to completely cover the entire planet. On June 4, 2018, NASA announced that "Curiosity" ability to drill has been sufficiently restored by engineers. The rover had experienced drill mechanical problems since December 2016. On June 7, 2018, NASA announced a cyclical seasonal variation in atmospheric methane, as well as the presence of kerogen and other complex organic compounds. The organic compounds were from mudstone