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 to the drill mechanism and the rover started moving again on December 9. The robotic arm is functional, and the "Curiosity" team performed diagnostics on the drill mechanism throughout 2017. On June 4, 2018, NASA announced that "Curiosity" ability to drill has been sufficiently restored by changing the drilling methods. Since September 15, 2018, a glitch in "Curiosity"'s active computer (Side-B) has prevented "Curiosity" from storing science and key engineering data. On October 3, 2018, the JPL began operating "Curiosity" on its backup computer (Side-A). "Curiosity" will store science and engineering data normally using its Side-A computer until the cause