I've always entertained the thought of small-celled organisms within the under oceans of Europa. I think that's the right one? Something about the friction of an elongated orbit generating enough heat to keep the salty 'ocean' liquid under the surface..

667CC is a lot closer than 22B.. still hard to fathom that kind of distance though. What are your thoughts on other-than-carbon-based lifeforms?

Which celestial body that we know of would most likely harbor life/be capable of harboring life?