北京时间5月22日15时44分,美国首艘商业货运飞船——空间探索技术(SpaceX)公司的“龙”飞船搭乘“猎鹰”9(Falcon9)火箭从卡纳维拉尔角发射升空。这是人类向国际空间站发射的第一艘商业飞船,也是航天飞机退役后美国首次向国际空间站运送货物。按预定计划,“龙”飞船搭载521公斤货物于25日与国际空间站对接,届时,航天员将通过机械臂抓住飞船,使其停靠在恰当对接点;对接后航天器舱门于5月26日打开,国际空间站上的航天员 Beijing time at 15:44 on May 22, the United States the first commercial cargo spacecraft - space exploration technology (SpaceX) ’s “Dragon” spacecraft “falcon” 9 (Falcon9) rocket from Canaveral Horn launch off. This is the first human spacecraft launched into the International Space Station commercial spacecraft, but also after the shuttle retired the United States for the first time to the International Space Station cargo delivery. According to the plan, the “Dragon” spacecraft carrying 521 kilograms of cargo on the 25th docking with the International Space Station, then, the astronauts will grasp the spacecraft by a mechanical arm to make it dock at the appropriate docking; spacecraft docking docking 5 Open on the 26th, astronauts on the ISS