And Europe just sent a huge 10,000 lb satellite and lander with the mission to find out what created the Methane, so far there are less than a handful of reasonable options. It could be micro biology under the surface, or geological or I don't know what. The US was going to send a NASA robot along on the same rocket and have them land and roam around searching for the cause together, like a Micheal Bay movie or something, but their budget wasn't sufficient for a new robot. What do you think caused it?
Any science backed answers are supremely appreciated.