In articles in Nature and Science Daily, a team of researchers, including ESS professor Axel Schmitt, reports on the results of their analysis of a basaltic Martian meteorite. They confirm the presence of ancient, non-convecting mantle beneath young volcanic Mars, place an upper bound on the interplanetary travel time of the ejected Martian crust, and validate a new approach to the geochronology of the inner Solar System.

http://www.nature.com/nature/journal/v499/n7459/full/nature12341.html