In the soil. They found organic molecules in the soil. So no methane but something solid I guess. And remember, they couldn't find methane yet on mars, Curiosit

In the soil. They found organic molecules in the soil. So no methane but something solid I guess. And remember, they couldn't find methane yet on mars, Curiosity results were negative. http://www.nature.com/news/nasa-rover-yet-to-find-methane-on-mars-1.11730 http://www.nature.com/news/nasa-rover-yet-to-find-methane-on...