Dawn easing into its final science orbit
Friday, June 15, 2012 - 08:00
in Astronomy & Space
(Phys.org) -- After successfully completing nearly five months scrutinizing the giant asteroid Vesta at its lowest orbit altitude, NASA's Dawn spacecraft will begin its final major science data-gathering phase at Vesta on June 15, at an average altitude of 420 miles (680 kilometers) above the surface.