Occator Crater and Ahuna Mons appear together in this view obtained by NASA's Dawn spacecraft on Feb. 11, 2017. Ahuna Mons, on the limb at right, is a mountain 2.5 miles (4 kilometers) tall. Occator hosts the mysterious 'bright spots' called faculae.
This enhanced color composite image from NASA's Dawn spacecraft's visible and infrared mapping spectrometer shows the area around Ernutet Crater on Ceres. The instrument detected the evidence of organic materials in this area.
This enhanced color composite image, made with data from the framing camera aboard NASA's Dawn spacecraft, shows the area around Ernutet crater. The bright red portions appear redder with respect to the rest of Ceres.
This image, taken by NASA's Dawn spacecraft on Oct. 17, 2016, captures the day-night boundary, or terminator, in the north polar region of Ceres. The north pole itself, which lies just slightly left of center in this view, is barely sunlit.
This view, taken on Oct. 22, 2016, from NASA's Dawn spacecraft shows the craters Kondos and Jarimba on Ceres. Jarimba is the largest crater, located at left. Above Jarimba, on the left-hand edge of the image, is Kondos.
This frame from an animation from NASA's Dawn spacecraft shows a crater in the northern polar region of Ceres that is partly in shadow year-round, where bright water ice deposits have been observed in several craters.
This frame from an animation shows dwarf planet Ceres overlaid with the concentration of hydrogen determined from data acquired by the gamma ray and neutron detector (GRaND) instrument aboard NASA's Dawn spacecraft.
This view from NASA's Dawn spacecraft shows part of the southwestern rim of Yalode Crater on Ceres. Yalode is one of the largest impact basins on Ceres. A great deal of material has slumped down the walls of the crater. a phenomenon called mass wasting.
This scene captured by NASA's Dawn spacecraft on Oct. 21, 2016, from Ceres' northern hemisphere shows part of the rim of Dantu Crater, at top right. Rao Crater is the largest crater in the bottom left corner of the image.
Dantu Crater on Ceres, at top center, is featured in this image from NASA's Dawn spacecraft taken on Oct. 21, 2016. A small crater located around the 5 o'clock position within Dantu is called Centeotl.
This scene viewed by NASA's Dawn spacecraft on Oct. 20, 2016, from Ceres features terrain near the rim of the large crater named Kerwan, at lower left. A much smaller, fresher crater called Cacaguat is seen in the lower right corner.
Sunlit cliffs tower above Yalode Crater on Ceres in this shadowy perspective view. At 152 miles, Yalode is one of Ceres' largest craters. A fissure called Nar Sulcus is seen just right of center. NASA's Dawn spacecraft took this image on Oct. 19, 2016.
This southern hemisphere scene from dwarf planet Ceres encompasses parts of the craters Mondamin and Darzamat. Mondamin is large crater located in the top half of image, Darzamat is at bottom-right. NASA's Dawn spacecraft took this image on Oct. 19, 2016.