Bright Spots Galore and a Mystery Mountain: Ceres Gets Curiouser and Curiouser
The more NASA’s Dawn spacecraft observes of the dwarf planet Ceres the weirder it seems to get. Closer investigations of the “bright spots” first seen in Hubble images in 2003 and then in Dawn images upon approach during the first few months of 2015 show an ever-increasing cluster of smaller bright areas (eight at last count) and now a strange lone conical mountain has been found, rising 3 miles (5 km) from Ceres’ surface.
What are the origins of these features? The bright spots are only known at this point to be reflective (rather than light-emitting) substances, and the “great pyramid of Ceres” as it’s being called could be volcanic in origin… but only further investigation will tell.
Dawn will drop down to an altitude three times lower in July, after which much more detailed images will be acquired. What will be discovered then? Stay tuned…