NASA released the clearest images ever taken of Ceres, queen of the astroid belt, on Thursday.
This image, taken on Feb. 4 from 90,000 miles away, brings clearer focus to what look to be craters and ridge lines on the dwarf planet.
NASA's Jet Propulsion Laboratory released the images without further explanation of those features. Its mission scientists, including a cadre of experts at Tucson's Planetary Science Institute, are studying the latest batch to try to figure out what it all means.
Things will be much clearer when NASA's Dawn spacecraft goes into orbit around Ceres, an event scheduled for March 6.
