Hangzhou Xiaoshan Airport UFO Closure (2010)

The event

On the evening of 7 July 2010, air traffic at Xiaoshan International Airport, the main airport serving Hangzhou in Zhejiang Province, was halted for roughly an hour. According to Wikipedia's summary of Chinese UFO reports, a flight crew on approach first saw the object at about 8:40 pm and alerted air traffic control; some inbound traffic was diverted to Ningbo and Wuxi. Several outlets, including SCMP, reported the delays as flight disruption rather than a formal emergency. Reports disagree on the exact date, with some placing the closure on 9 July, and on the number of flights affected: one Christian Science Monitor account gives eighteen.

Witness descriptions in the press were vivid. The CSMonitor report relayed accounts of a bright object with a comet-like tail, red and white rays of light, and rapid westward movement, though these came from anonymous residents and a bus driver rather than from named investigators.

Investigation and explanations

The most cited follow-up came from civilian researchers rather than an official body. Members of Beijing and Shanghai UFO research groups visited the airport and interviewed witnesses, and according to Shanghai Daily's coverage they concluded the object was no alien craft. Their reported finding was that the circulating photographs, which had spread widely online, were not taken at Xiaoshan and that the object was probably an aircraft, possibly military. They also reported finding no radar images corroborating the sighting. Wikipedia's summary notes the same conclusion.

No Chinese government agency publicly identified the object. An airport official reportedly said he did not have a clear answer about whether it was a plane. Press speculation ranged from a Russian satellite and a hidden US bomber to a Chinese missile.

Astrophysicist Christine Pulliam of the Harvard-Smithsonian Center for Astrophysics offered a more general explanation, a superior mirage produced by a temperature inversion, the same optical effect that lets the sun appear above the horizon before it has risen. She added: "extraordinary claims require extraordinary proof."

Why it matters and how to weigh it

The Hangzhou case is significant less for its physical evidence than for what it shows about how Chinese authorities handled an aviation disruption. A closure of a major airport is a documented event with operational consequences, and the official silence on the object's identity left a vacuum that was filled by civilian ufologists and online speculation.

The evidence, however, is thin. The strongest public material is news reporting, not official records. The most-shared images were, by the researchers' account, not from the airport at all: one widely circulated clip was later withdrawn by Fox News and the LA Times after experts said it was filmed hundreds of miles away in Kazakhstan. No radar confirmation has been published, and no primary government investigation report is available in English.

Given this, the fair reading is that a real airport closure occurred, a sighting was reported by aircrew and others, and the most plausible conventional explanation (an aircraft, possibly military, or an optical effect) was never ruled in or out officially. The case stays classed as contested: well-reported as an event, unresolved as a phenomenon.