“Methane has been difficult to detect from Earth or the current generation of Mars orbiters because the gas exists on Mars only in traces, if at all. The Tunable Laser Spectrometer (TLS) in SAM provides the first search conducted within the Martian atmosphere for this molecule. The initial SAM measurements place an upper limit of just a few parts methane per billion parts of Martian atmosphere, by volume, with enough uncertainty that the amount could be zero.”

Looks like there is no life on Mars and probably never was so lets move on.

PS
This finding will come as no surprise to Biblical scholars.

the chances of life on mars are a million to one

http://www.youtube.com/watch?v=v—IqqusnNQ

wookiemeister said:

the chances of life on mars are a million to one

So they say.