Dawn captures first image of nearing asteroid
Wednesday, May 11, 2011 - 12:30
in Astronomy & Space
(PhysOrg.com) -- NASA's Dawn spacecraft has obtained its first image of the giant asteroid Vesta, which will help fine-tune navigation during its approach. Dawn is expected to achieve orbit around Vesta on July 16, when the asteroid is about 188 million kilometers (117 million miles) from Earth.