In this item on space.com
http://www.space.com/scienceastronomy/0504...rs_methane.html
It mentions a "major source" of methane detected by MGS and others during the fall equinox.
Is there any likely geological cause for this at this time of year?
If not could this be the first serious hint of life on mars.
Shoot me down gently this only my second posting.

Reckless

p.s. I wasn't sure where to post this and did it here as MGS was mentioned.