Comment on

• Deposition, exhumation, and paleoclimate of an ancient lake deposit, Gale crater, Mars.

  Grotzinger JP, Gupta S, Malin MC, Rubin DM, Schieber J, Siebach K, Sumner DY, Stack KM, Vasavada AR, Arvidson RE, Calef F 3rd, Edgar L, Fischer WF, Grant JA, Griffes J, Kah LC, Lamb MP, Lewis KW, Mangold N, Minitti ME, Palucis M, Rice M, Williams RM, Yingst RA, Blake D, Blaney D, Conrad P, Crisp J, Dietrich WE, Dromart G, Edgett KS, Ewing RC, Gellert R, Hurowitz JA, Kocurek G, Mahaffy P, McBride MJ, McLennan SM, Mischna M, Ming D, Milliken R, Newsom H, Oehler D, Parker TJ, Vaniman D, Wiens RC, Wilson SA. Grotzinger JP, et al. Science. 2015 Oct 9;350(6257):aac7575. doi: 10.1126/science.aac7575. Science. 2015. PMID: 26450214