Curiosity (rover) the passion that drives us through our everyday lives." On August 6, 2013, "Curiosity" audibly played "Happy Birthday to You" in honor of the one Earth year mark of its Martian landing, the first time for a song to be played on another planet. This was also the first time music was transmitted between two planets. On June 24, 2014, "Curiosity" completed a Martian year—687 Earth days—after finding that Mars once had environmental conditions favorable for microbial life. "Curiosity" will serve as the basis for the design of the Mars 2020 rover mission that is presently planned to be launched
Opportunity (rover) early June 2018, a large global-scale dust storm developed and within a few days the rover's solar panels were not generating enough power to maintain communications, with last contact on June 10, 2018. NASA stated they did not expect to resume communication until after the global dust storm subsided, but the rover kept silent even after the storm ended in early-October, suggesting either a catastrophic failure or a layer of dust covered its solar panels. The team remains hopeful that a windy period between November 2018 and January 2019 may clear the dust from its solar panels, as has happened