[lbo-talk] Mars has methane

[Andy]

On Tue, Jan 20, 2009 at 7:36 PM, Chris Doss <lookoverhere1 at yahoo.com> wrote:
> Heavy indicator of liquid water, active vulcanism, and/or biological activity, isn't it?

Biology not so much, necessarily.  Methane is present on a number of
local planets and moons.  What would be more interesting is the
presence of methane with free oxygen -- a highly unstable equilibrium
that would require something to maintaining it.  Finding both in the
emitted spectrum of an extrasolar planet would be very exciting.

-- 
Andy