The ESA and Roscosmos have recommended a region of Mars known as Oxia Planum for the upcoming Exomars rover. With a launch planned for 2020, the rover will explore the surface and drill up to two meters into the surface to hunt for clues that life once existed on Mars.
We've gone from a geologically dead planet, to a planet with an active geological past; from a dry planet to a planet with countless traces (to put it mildly) of a very wet past. How long before we can knock off "lifeless" (even if it is "just" traces of previous life)?
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