Tonight makes me wish I had discovered this forum earlier! My situation: my capstone course is basically writing a paper about something on the forefront of the scientific frontier. This is neither a report style of paper nor original work, but instead a sort of discussion on the controversy of some kind of issue in any of a slew of scientific fields. My first love is astronomy, so I've chosen to write about quintessence. I've started doing my research and found a massive amount of reading to do. So, I'm asking for a bit of assistance: basically, could anyone list some of the current controversies in the theory of quintessence? My apologies if this is vague; I'm really just getting started on this. If I can clear any additional questions up, I will.