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Jim Green, director of planetary science at NASA Headquarters, Michael Meyer, lead scientist for the Mars Exploration Program at NASA Headquarters, Lujendra Ojha of the Georgia Institute of Technology in Atlanta, Mary Beth Wilhelm of NASA’s Ames Research Center in Moffett Field, California and the Georgia Institute of Technology, and Alfred McEwen, principal investigator for the High Resolution Imaging Science Experiment (HiRISE) at the University of Arizona, promised a major announcement on Mars research today, and they delivered.

Most people are able to recognize the smell of “death” when they encounter a dead animal on a farm or a roadkill. 



How did the world sound to our ancient human relatives two million years ago?

