The above and below screenshots have been focused by me, SCW. I did my best to add contrast, without losing detail so we can see it more clearly. From my June 11, 2015 post.
Date of announcement: July 22, 2015
Location of anomaly: Dwarf Planet Ceres
News source: http://www.washingtonpost.com/news/speaking-of-science/wp/2015/07/22/those-mysterious-spots-on-ceres-may-have-mysterious-haze-over-them-too/
Russell and his team have now spotted signs of an occasional haze above the crater housing the bright spots. The haze, Russell told Nature, “could be providing some atmosphere in this particular region of Ceres." The haze isn't present everywhere they've seen bright spots, but it does seem to appear periodically over the large crater where bright spots were first seen. It could be that the haze is formed by sublimating ice, which would suggest that the bright spots are indeed frozen water. Sometime next month, Dawn will move into a closer orbit around Ceres -- just about 900 miles over the surface. Hopefully that closer orbit will allow the team to collect better images and spectral data, solving the mystery once and for all.