The Bright Spots On Ceres Are Blinking! March 16, 2016, UFO Sighting News.

 Both upper and lower photos are the same object, but lower was told to public first, then later NASA showed the upper photo saying it was the same object...but apparently NASA changed objects.

Date of article: March 16, 2016
Location of sighting: Dwarf Planet Ceres
News source: http://www.universetoday.com/127897/bright-spots-ceres-blinking/

Astronomers on Earth decided to observe Ceres bright spots and noticed that they blink every 9 hours. Like a light house signal but instead of across the ocean, its across the solar system. Its a signal, but is it an early warning signal, a greeting, a radar tower or what? We may never know in our lifetime, but I am sure its there for a purpose.  Maybe we should signal back. 
Scott C. Waring
www.ufosightingsdaily.com 

News states:
All right, maybe not blinking like a flashlight (or a beacon on the tippity-top of a communication tower—don’t even start that speculation up) but the now-famous “bright spots” on the dwarf planet Ceres have been observed to detectably increase and decrease in brightness, if ever-so-slightly. And what’s particularly interesting is that these observations were made not by NASA’s Dawn spacecraft, currently in orbit around Ceres, but from a telescope right here on Earth. Researchers using the High Accuracy Radial velocity Planet Searcher (HARPS) instrument on ESO’s 3.6-meter telescope at La Silla detected “unexpected” changes in the brightness of Ceres during observations in July and August of 2015. Variations in line with Ceres’ 9-hour rotational period—specifically a Doppler effect in spectral wavelength created by the motion of the bright spots toward or away from Earth—were expected, but other fluctuations in brightness were also detected. “The result was a surprise,” said Antonino Lanza from the INAF–Catania Astrophysical Observatory, co-author of the study. “We did find the expected changes to the spectrum from the rotation of Ceres, but with considerable other variations from night to night.” (More at source).

White Spots On Ceres Have Atmosphere Over Their Craters...Says NASA DAWN Team, July 2015, UFO Sighting News.

 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/

News states:
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.