NASA's Dawn spacecraft beams back new photoJuly 22, 2011 in Astronomy & Space / Space Exploration
(PhysOrg.com) -- Dawn took this image during its current orbit of Vesta, traveling from the day side to the night side.
The large structure near the south pole that showed up so prominently in previous images is visible in the center of the illuminated surface. Compared to other images, this one shows more of the surface beneath the spacecraft in the shadow of night. Vesta turns on its axis once every five hours and 20 minutes.
Provided by JPL/NASA
"NASA's Dawn spacecraft beams back new photo" July 22, 2011 http://phys.org/news/2011-07-nasa-dawn-spacecraft-photo.html