Dawn has been in orbit around Ceres for over a year now, having entered orbit back on March 6th, 2015. Most of the dwarf planet has been photographed and mapped in high resolution now, creating beautiful imagery that reveals a great deal of interesting terrian. As we have seen with other dwarf planets like Pluto, these little worlds are surprisingly dynamic places, hardly the dead rocks one might have expected.
The bright features in Occator crater have been revealed to be some sort of cryovolcano. While not certain, the bright is likely to be water ice, or perhaps a briny, salt and water mixture. There has even been some evidence of vapor observed over the crater, possibly from sublimating ices.
I am sure this is a large disappointment to those who claimed it was some sort of alien base. Not that this has stopped the claims, they are just more modest in size. You can find YouTube videos of folks combing through the high resolution images and claiming any little feature that is slightly regular looking is some alien artifact.
More enjoyable to watch is a JPL video pointing out the highlights of Ceres…
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