Curiosity (rover) conditions favorable for microbial life, including investigation of the role of water; and planetary habitability studies in preparation for human exploration. In December 2012, "Curiosity" two-year mission was extended indefinitely. On August 5, 2017, NASA celebrated the fifth anniversary of the "Curiosity" rover landing and related exploratory accomplishments on the planet Mars. The rover is still operational, and as of , "Curiosity" has been on Mars for sols ( total days) since landing on August 6, 2012. "(See current status.)" "Curiosity" design will serve as the basis for the planned Mars 2020 rover. As established by the Mars Exploration Program,
Mars Global Remote Sensing Orbiter and Small Rover Mars Global Remote Sensing Orbiter and Small Rover The Mars Global Remote Sensing Orbiter and Small Rover (HX-1) is a planned project by China to deploy an orbiter and rover on Mars. The mission is planned to be launched in July or August 2020 with a Long March 5 heavy lift rocket. Its stated objective is to search for evidence of both current and past life, and assessing the planet's environment. China's Mars program started in 2009 in a partnership with Russia. However, the Russian spacecraft Fobos-Grunt carrying a Chinese orbiter Yinghuo-1 crashed on 15 January 2012, days after lift-off.