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.
It is almost five months since New Horizons’ epic encounter with Pluto, but the captured images and data will stream back to Earth across 3 billion miles of interplanetary space for a further 11 months. The first in a series of the best close-ups of the dwarf planet that humans may see for decades have been released, obtained when the spacecraft was just 15 minutes before closest approach during the 14 July flyby.
Many of you may have tracked down an asteroid with binoculars or a telescope, but have you ever seen one with the naked eye? If not, then June presents you with an opportunity to see the brightest, 4 Vesta, at a close opposition. What’s more, ringed planet Saturn lies close by to act as a convenient guide.
What is the origin of the large heart-shaped nitrogen glacier on Pluto revealed by NASA’s New Horizons spacecraft in 2015? Two French researchers show that Pluto’s peculiar insolation and atmosphere favour nitrogen condensation near the equator, in the lower altitude regions, leading to an accumulation of ice at the bottom of Sputnik Planum, a vast topographic basin.