Brett Aubrey  wrote or quoted:

> Extremophiles are now found deep in the rocky mantle, high in the atmosphere
> and around oceanic vents, where we used to assume life was impossible.  If
> life has evolved elsewhere, I think we'll find it can thrive in even more
> extremely diverse and "inhospitable" (from our viewpoint)
habitats than ones
> just here on this planet.  If I were a betting man and thought that any of
> this can be proven in my lifetime, I'd even propose a wager that whatever
> life we find will not have DNA, nor anything we'd consider a variant, as its
> base.

Surely mars is where we are most likely to find life in the short term.

If there's life on mars, I'd bet it /does/ have something very similar
to DNA - due to cross-contamination with the earth and common descent.
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