2015年3月6日,美国航空航天局(NASA)的“黎明”(Dawn)小行星探测器抵达谷神星,从而成为首个探测矮行星的探测器、首个探测谷神星的探测器,还成为首个探测两个独立地外天体的探测器。“黎明”于2007年9月27日由德尔他-2火箭发射。该项目由喷气推进实验室(JPL)管理,轨道科学公司(Orbital Sciences Corporation)负责探测器的设计和制造,加州大学洛杉矶分校负责任务的科学运行。“黎明”项目的总成本预计为4.46亿美元。 On March 6, 2015, NASA’s Dawn asteroid reached Ceres, making it the first detector to detect dwarf planets, the first to detect Ceres, Become the first detector to detect two separate outer objects. “Dawn” was launched on September 27, 2007 by the Deltas -2 rocket. The project is run by the Jet Propulsion Laboratory (JPL), Orbital Sciences Corporation is responsible for the design and manufacture of detectors, and UCLA is responsible for the scientific operation of the mission. The total cost of the Dawn project is estimated at $ 446 million.