美國航空航天局的黎明朝向矮行星

NASA's Dawn heading to dwarf planet
美國航空航天局的黎明朝向矮行星
2012-09-06
After spending a year gazing at a giant asteroid, NASA's Dawn spacecraft began cruising toward an even bigger target. After pulling way from the asteroid Vesta it's now headed towards the dwarf planet Ceres. The jorney will take approximately three years.
花了一年時間住一顆巨大的小行星後，美國國家航空航天局的黎明太空飛船開始巡航迎向一個更大的目標。從小行星灶神星抽身而退後，它現在朝向矮行星谷神星，旅程將需時約為三年。