This new view of Ceres’ surface captured May 23rd and seen from a distance of 3,200 miles (5,100 kilometres) shows finer details coming into view as NASA’s Dawn spacecraft spirals down to increasingly lower orbits. Resolution in the image is about 1,600 feet (480 metres) per pixel. Image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA.The view shows numerous secondary craters, formed by the re-impact of debris strewn from larger impact sites. Smaller surface details like this are becoming visible with increasing clarity as Dawn spirals lower in its campaign to map Ceres.
The region shown here is located between 13° and 51° north latitude and 182° and 228° east longitude. The image has been projected onto a globe of Ceres, which accounts for the small notch of black at upper right.
OpNav9 is the ninth and final set of Dawn images of Ceres taken primarily for navigation purposes.
Sprawling across Pluto’s icy landscape is an unusual geological feature that resembles a giant spider. This enhanced colour image, obtained by NASA’s New Horizons spacecraft on 14 July 2015, consists of at least six extensional fractures (arrowed) converging to a point near the centre. Curiously, the spider’s “legs” expose red deposits below Pluto’s surface.
Global stereo mapping of Pluto’s surface is now possible (requires red/blue glasses for viewing in 3-D), as images taken from multiple directions are downlinked from NASA’s New Horizons spacecraft. Stereo images will eventually provide an accurate topographic map of most of the hemisphere of Pluto seen by New Horizons, which will be key to understanding the dwarf planet’s geological history.
This feature appears to be a frozen, former lake of liquid nitrogen, located in a mountain range just north of Pluto’s informally named Sputnik Planum. Captured by the New Horizons’ Long Range Reconnaissance Imager (LORRI) as the spacecraft flew past Pluto on 14 July 2015, the image shows the possible lake to be about 20 miles (30 kilometres) across.