[Ain Soph Aur]

I remember reading in a geology publication not long ago an article in which a scientist was discussing the production of abiotic methane, and that it may very well occur in large amounts deep within Earth's crust and stored in hydrates at the bottom of the ocean. The existence and production of abiotic methane is proven, the only controversy is the amounts.

Life on Titan would have had to evolve in temperatures near -300 F, while life on Earth is thought to have evolved in temperatures near 1000 C, in an environment not unlike the Mid-Atlantic ridge of today. If we found life on Titan, chacnes are we wouldn't recognize it.

[AntiGuv]

It's not the methane itself that cannot be explained without biology, but rather the presence of methane and carbon dioxide together. That doesn't mean it won't be explained by abiotic means, just that we don't know how to explain it yet. When all's said and done, I would not be surprised if Titan is dead as dead can be, but my point is that we have no basis yet to proclaim Titan yet.

[AntiGuv]

No basis to proclaim Titan dead, that is..

[dread78645]

... If we found life on Titan, chacnes are we wouldn't recognize it.

Since we're looking at carbon/hydrogen/oxygen molecules on Titan, I suspect we'd recognize it.

Outside of that chemistry, I'm afraid we're blinkered by Carbon chauvinism

[saminfl]

If we found life on Titan, chacnes are we wouldn't recognize it.

Isn't Titan where the slugs came from in Heinlein's, The Puppet Masters?

[Diamond]

Life on Titan would have had to evolve in temperatures near -300 F, while life on Earth is thought to have evolved in temperatures near 1000 C

Why is it said that evolution has nothing to do with abiogenesis?

Cordially