Methane sources on Mars

[polar bear]

for us non scientific types, what is the significance of methane being present? I would imagine a lot of gasses are present.

Hope this helps

Thanks, it did!

Arent we a bit narrow minded to think that the way we live, die and decay will be the same process on different locations in the universe? It just so happens that we have evolved to breathe oxygen and expel carbon dioxide, and our plant system does this in reverse. Couldn't other forms of life (not necessarily human) breathe and expel different gasses. If we change the gases breathed and expelled, I am certain when we decay a different gas would be present.

Am I really off base on this? This fascinates me, I wish I would have studied science instead of finance in school.