How you "tend to think" of comets is not very relevant - they can be warm enough inside near a hot star, near thousands of close stars, and after being coated with radioactive material from an exploded star.
Me, I don't get how life is supposed to form in a comet. You say it has an aqueous environment. I tend to think of them as "icy". And life has moving parts. That's why freezers work.
I just added to the post.
Life can exist in ice. See http://www.youtube.com/watc... .
How you "tend to think" of comets is not very relevant - they can be warm enough inside near a hot star, near thousands of close stars, and after being coated with radioactive material from an exploded star.
Me, I don't get how life is supposed to form in a comet. You say it has an aqueous environment. I tend to think of them as "icy". And life has moving parts. That's why freezers work.