Follow the water and the oxygen. Just two of the key tenets of humanity’s early and ongoing exploration drives within our solar system. That research has received huge boons in the last two decades with in-situ exploration of Titan and Enceladus by Cassini.
But in the last three years, it has been NASA’s Curiosity rover in Gale Crater on Mars and a powerful telescope in Hawai’i that have given NASA scientists new insights – and questions – into the role of oxygen and water on Mars and Jupiter’s moon Europa, respectively.