by Anomalies in the distribution of hydrogen at Occator crater on the dwarf planet Ceres reveal an icy crust, says a new paper led by Tom Prettyman, a Senior Scientist at the Planetary Science Institute.
The evidence comes from data acquired by the Gamma Ray and Neutron Detector (GRaND) aboard NASA's Dawn spacecraft.
A detailed map of the concentration of hydrogen in the vicinity of Occator was derived from observations from elliptical orbits that brought the spacecraft very close to the surface during the final mission phase, said Prettyman.
Source
The evidence comes from data acquired by the Gamma Ray and Neutron Detector (GRaND) aboard NASA's Dawn spacecraft.
A detailed map of the concentration of hydrogen in the vicinity of Occator was derived from observations from elliptical orbits that brought the spacecraft very close to the surface during the final mission phase, said Prettyman.
Source
