Aeolis Palus December 9, 2013, NASA reported that, based on evidence from "Curiosity" studying Aeolis Palus, Gale Crater contained an ancient freshwater lake which could have been a hospitable environment for microbial life. On December 16, 2014, NASA reported detecting, based on measurements by the "Curiosity" rover, 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 deuterium to hydrogen ratio studies, much of the water at Gale Crater on Mars was found to have been
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