fiat_knox | I should've posted this earlier, but ... (Reply)

Methane On Mars - Possible Sign of Life?

Just in case you're wondering, methane is a gas that is either produced by geological activity ... or by life. And its short lifespan in an atmosphere indicates that the process generating it must be a current one.

Now the scientists at NASA are pretty sure that Mars is geologically dead: the kind of geological activity that they know of, of the sort that produces methane on Earth, is not likely to be happening on Mars.

So, assuming that the methane's not being produced by geological processes, what else could be generating it ... that we know of?

It's a big if. But it's got a lot of people excited.

And you know, I could say something here at this point, but I couldn't possibly comment ...

Thanks to