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In a brand new paper published in Geophysical Research Letters with Planetary Science Institute senior scientist Tom Prettyman as lead author, we have learned that Occator Crater also contains evidence for Ceres to have an icy crust. Using data acquired by the Gamma Ray and Neutron Detector (GRaND) aboard the Dawn spacecraft, Prettyman and his team, which includes several other scientists from PSI, created a detailed map of the concentrations of hydrogen in and around the crater. They found that these concentrations were elevated from what was expected, particularly in the outermost meter of the surface of Occator. This excess hydrogen could be in the form of water ice. On the surface of Ceres.⠀
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IMAGE: The study focused on Occator crater (left), which contains Ceres’ most prominent bright spots. The newly reported map (right) reveals higher concentrations of hydrogen than expected if the near sub-surface within Occator crater and its ejecta blan...