Artist's concept of NASA's Mars Reconnaissance Orbiter using its sounding radar to probe beneath the Martian surface to see if water ice is present at depths greater than one meter. Credit: NASA/JPL
A concept of  the European Space Agency's ExoMars Rover. Credit: European Space Agency/AOES Medialab artist's concept
Mars 2020
Atlas 5 launch of MSL
Mars 2020
Mars 2020