Curiosity (rover) to Mars in 2020. Some spare parts from the build and ground test of "Curiosity" may be used in the new vehicle. On August 5, 2017, NASA celebrated the fifth anniversary of the "Curiosity" rover mission landing, and related exploratory accomplishments, on the planet Mars. (Videos: "Curiosity" First Five Years (02:07); "Curiosity" POV: Five Years Driving (05:49); "Curiosity" Discoveries About Gale Crater (02:54)) As reported in 2018, drill samples taken in 2015 uncovered organic molecules of benzene and propane in 3 billion year old rock samples in Gale Crater. The NASA/JPL Mars Science Laboratory/"Curiosity" Project Team was awarded the 2012
Mars landing heat flow from the deep interior of Mars, was launched on May 5, 2018. It landed successfully in Mars's Elysium Planitia on November 26, 2018. Additional future missions are the Mars 2020 rover, the Chinese Mars Global Remote Sensing Orbiter and Small Rover, and the Indian Mars Orbiter Mission 2 orbiter. The ESA ExoMars rover, also planned for launch in 2020, should obtain soil samples from up to 2 meters depth and make an extensive search for biosignatures and biomolecules. There is a proposal for a Mars Sample Return Mission by ESA and NASA, but this has been delayed until