Water on Mars of these salts". NASA also reported that Jake M rock, a rock encountered by "Curiosity" on the way to Glenelg, was a mugearite and very similar to terrestrial mugearite rocks. On December 9, 2013, NASA reported that Mars once had a large freshwater lake inside Gale Crater, that could have been a hospitable environment for microbial life. On December 16, 2014, NASA reported detecting 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
Rover (space exploration) Agency (ESA) is currently designing and carrying out early prototyping and testing of the ExoMars rover. , the rover is scheduled for launch in 2020. The Mars 2020 rover mission is a Mars rover under development by NASA with a launch planned for 2020. It is intended to investigate an astrobiologically relevant ancient environment on Mars, investigate its surface geological processes and history, including the assessment of its past habitability and potential for preservation of biosignatures within accessible geological materials. Rover (space exploration) A rover (or sometimes planetary rover) is a space exploration vehicle designed to move across the surface