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1. zh.wikipedia.org › wiki › 不明飞行物不明飞行物 - 维基百科，自由的百科全书

   zh.wikipedia.org › wiki › 不明飞行物

   • En caché

   不明飞行物. 不明飛行物 （ 體 ）或稱 未確認飛行物 （ 體 ）（ 英文 ： U nidentified F lying O bject， 縮寫 ：UFO），是指不明來歷、不明性質，漂浮及 飛行 在 天空 的物體。. 意指是只要在觀察者眼中看不清或無法辨認的不詳物體都稱為UFO。. 很多人將UFO視為等同於 ...

2. www.npr.org › 2021/06/04 › 1003262749How UFO Sightings Went From Conspiracy Theory To A Serious ... -...

   www.npr.org › 2021/06/04 › 1003262749

   4 de jun. de 2021 · That same year, the Air Force started a program to investigate UFO sightings, called Project BLUE BOOK. Over the next two decades, 12,618 strange sightings were reported to the project. When it ...

3. baike.baidu.com › item › 不明飞行物不明飞行物（不明航空现象）_百度百科

   baike.baidu.com › item › 不明飞行物

   • En caché

   UFO全称Unidentified Flying Object，中文意思是不明飞行物、飞碟。UFO在欧洲古代的 以西结书 中有记载，在中国古代，UFO又叫作 星槎 。 引起UFO现象大体分为四类：已知现象的误认，未知自然现象，未知自然生物，第四类是指有明显智能飞行能力、而非地球人所制造的飞行器，即 外星文明 的飞碟（ Flying ...

4. www.britannica.com › topic › unidentified-flying-objectUnidentified flying object (UFO) | History, Sightings, & Facts

   www.britannica.com › topic › unidentified-flying-object

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   Hace 2 días · A second committee was set up in 1966 at the request of the Air Force to review the most interesting material gathered by Project Blue Book. Two years later this committee, which made a detailed study of 59 UFO sightings, released its results as Scientific Study of Unidentified Flying Objects—also known as the Condon Report, named for Edward U. Condon, the physicist who headed the investigation.

5. www.britannica.com › story › unidentified-flying-objects-what-we-knowUnidentified Flying Objects: What We Know | Britannica

   www.britannica.com › story › unidentified-flying-objects-what-we-know

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   Unidentified flying objects (UFOs) are airborne objects—or optical phenomena that seem like airborne objects—that an onlooker is unable to identify. UFOs first became a major subject of public interest after World War II, possibly sparked by the development of rocket technology. Some interpret the sighting of UFOs as evidence that ...

6. www.bbc.com › news › world-us-canada-65729356UFOs: Five revelations from Nasa's public meeting - BBC

   www.bbc.com › news › world-us-canada-65729356

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   31 de may. de 2023 · He and his co-pilot were flying near Virginia Beach and his colleague "was convinced we flew by a UFO". "I didn't see it. We turned around, we went to look at it, it turns out it was Bart Simpson ...

7. www.npr.org › 2023/07/27 › 1190390376Whistleblower testifies U.S. salvaged 'non-human biologics' from...

   www.npr.org › 2023/07/27 › 1190390376

   27 de jul. de 2023 · Nathan Howard/AP. Three military veterans testified in Congress' highly anticipated hearing on UFOs Wednesday, including a former Air Force intelligence officer who claimed the U.S. government has ...