SpaceX发展史
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On March 1, 2013, a 龙飞船 in 轨道 (力学) developed problems with its thrusters. Due to blocked fuel valves, the craft was unable to properly control itself. SpaceX engineers were able to remotely clear the blockages. Because of this, it arrived at the International Space Station one day later than expected. Since spacecraft like the Dragon were classified as 彈藥, and considered weapons under 国际武器贸易条例 until November 2014, SpaceX Mission controllers were unable to release more information to the public.
On June 28, 2015 SpaceX CRS-7 launched a 獵鷹9號運載火箭 carrying an unmanned 龙飞船 capsule intended to take supplies to the International Space Station. 2 minutes and 19 seconds into the flight a cloud of vapor was seen by the tracking camera forming outside the craft. A few seconds afterward there was a loss of pressure in the 氦 tank, after which they exploded, causing a complete failure of the mission. The 软件 was not programmed to deploy the parachute for the 龙飞船 capsule after a launch mishap, therefore the Dragon broke upon impact. The problem was discovered to be a failed 2 ft (61 cm) steel strut, purchased from a supplier, on a helium 压力容器, which broke due to the force of acceleration. This caused a breach and allowed helium to escape causing the loss of the spacecraft, which exploded. The software issue was also fixed; in addition, an analysis of the entire program was carried out in order to ensure proper abort mechanisms are in place for future rockets and their payload. SpaceX President 格温·肖特威尔 stated that in terms of the differences between the six previous successful 獵鷹9號運載火箭 Commercial Resupply（英语：） Launches, "there’s nothing that stands out as being different for any particular flight." Though the craft was set to bring a resupply of food and water to the ISS, the crew members had enough supplies to last another 4 months before another resupply, which would end up being the Russian Progress 60P vehicle. Student science experiments, as well as a docking adapter（英语：） and other miscellaneous cargo, were lost due to SpaceX CRS-7 failure as well.
2016年9月1日，卡纳维拉尔角空军基地40号航天发射台獵鷹9全推力運載火箭濕彩排（英语：）標準發射前推進劑填充爆炸。On September 1, 2016, a Falcon 9 Full Thrust launch vehicle exploded during a propellant fill operation for a standard pre-launch 濕彩排（英语：） at Cape Canaveral Launch Complex 40. There were no reported injuries, as the area was cleared for the test. However the payload, the Spacecom（英语：） AMOS-6（英语：） communications satellite valued at $200 million, was destroyed. Spacecom claims its contract, since the launch failed, allows it to choose to receive $50 million or a future flight at no cost. Musk described the event as the "most difficult and complex failure" ever in SpaceX's 14-year history; SpaceX reviewed nearly 3,000 channels of telemetry and video data covering a period of 35–55 milliseconds for the postmortem. In late September, SpaceX stated that interim results suggested that a major breach of the cryogenic helium system of the second stage rocket had occurred. In November 2016, Musk reported the explosion was caused by the liquid oxygen used as the oxidizer turning so cold that it became a solid, and it may have breached the helium pressure vessels which are immersed in the liquid oxygen. The vessels are overwrapped with a carbon composite material（英语：）. The solid oxygen, under pressure, could have ignited with the carbon material causing the explosion. SpaceX concluded its investigation on 2 January 2017 then successfully restarted its business of launching rockets in January 2017.
Successful SpaceX launches by year