Found this interesting link at Adastra. I've always felt a little sorry for Ceres. Just because it's in the same orbit as the asteroid belt ppl call it an asteroid. I think it should be a planet, and now astronomers are coming round to my way of thinking:
http://hubblesite.org/newscenter/new.../2005/27/text/
OK, lets strap some boosters to that baby, drag it into a more sensible orbit, let all that ice melt, install a bit of atmosphere and then build ourselves a planet-wide low-grav water park and whale sanctuary!