Re: Life on Jupiter? Maybe!
Nick makes some good points, however, there are traces of many other elements in the Jovian atmosphere, although according to what I have read of the Galileo probe results, no significant organic molecules were detected.
Still, Jupiter has one of the main ingredients for life, which is a huge load of available energy and lots of elements to smack around with it. I would not be at all surprised to find some form of primitive microscopic life floating in the upper atmospheric clouds. Wouldn't hold my breath looking for giant balloon creatures, though.