February 27, 2015
Cruising through the asteroid belt, NASA Dawn spacecraft is approaching dwarf planet Ceres, and some puzzling features are coming into focus, revealing craters and mysterious bright spots.
“We expected to be surprised by Ceres,” says Chris Russell, principal investigator of the Dawn mission, based at UCLA. “We did not expect to be this puzzled. … As Dawn has come closer to Ceres, the bright spots have become brighter and… read more