I have to wonder if this is some gimmick for more funds. It just happens that a satellite launched in 2007 will arrive near Ceres in early march 2015. A month before the Dawn craft is to arrive, nasa announces curious bright spots on the surface , seen by the Hubble. I just have to wonder if nasa knows what it is, be it lens aberrations or a phenomena on the surface.
A story of interest as a teaser for more funds, is is possible?