[–] i_scream_trucks 0 points 6 points (+6|-0) ago 

nobody has thought you need a 'clone earth' to get life for a very fuckng long time so im not sure what the article is meant to say.

[–] Lemongarb 0 points 2 points (+2|-0) ago  (edited ago)

Agreed. I've read many books that quite simply say alien life can be under our noses and we wouldn't even be able to recognize it. And this was 10+ years ago. Nothing new.

[–] ArsCortica 0 points 4 points (+4|-0) ago 

"Could" being the jumping point. I don't want to deny that there has to be extraterrestrial life somewhere. The statistics alone virtually guarantee that. But the very same statistics mean that our chances of finding any of said life - and I'm not so much talking about advanced aliens, but rather about simple, single-cell organisms - are absolutely abysmal. Like finding the proverbial needle in a haystack, except said haystack has the size of several million planets combined.

[–] ScottRockview 0 points 3 points (+3|-0) ago 

Just looking at how life can thrive here on deep sea vents, I'd say that life is far more prevalent in the Universe than we can imagine.

[–] i_scream_trucks 0 points 3 points (+3|-0) ago 

i think the opposite. its likely that microbial single celled stuff is far far far more common than we think, but the chances of finding anything larger are going to diminish with the size of the lifeform youre looking for.

carbon dioxide ethane or methane plus UV light equals tholins.

tholins plus h2o = pre-biotic life.

life is everywhere or rare, depending on your definition of life.