Plate 1 From habitability to life? Forty years of exploration has provided converging evidence that early Mars was habitable for life as we know it. Whether life ever took hold is a question that will be addressed by the next generation of missions, starting with Mars 2020 and ExoMars. Credit image: NASA/JPL-Caltech/MSSS. Dingo Gap captured by the Curiosity rover at Gale crater, Mars.
