NASA's Dawn Spacecraft Is Going To Swoop Lower To Ceres Than Ever Before
NASA is lead to send the Dawn space vehicle nearer to the dwarf planet Ceres than ever before , swooping to just 30 kilometers ( 18 mile ) above the surface . Dawn has been in orbit around Ceres since 2015 , having orbited the protoplanet Vesta previously from 2011 to 2012 . It ’s the first spacecraft to revolve two extraterrestrial objects . In October this year , NASA decided toextend the missionaround Ceres until at least the second one-half of 2018 , or until the space vehicle fails ....