The history of UFO sightings in North America goes back nearly 80 years. Explore the timeline of some of the most famous sightings and listen to testimonials from witnesses and the experts who dedicate their careers into uncovering the mysteries behind them. Solve the unknown in the brand new series, UFOs: Investigating The Unknown, Tuesdays at 8pm on National Geographic UK. | National Geographic UK
3:10
The history of UFO sightings in North America goes back nearly 8…
已浏览 3497 次2023年5月16日
FacebookNational Geographic UK
24th June 1947: The first widely-reported UFO sighting was made by private pilot Kenneth Arnold
2:39
24th June 1947: The first widely-reported UFO sighting was made …
已浏览 2.1万 次2021年6月23日
YouTubeHistoryPod
The First UFO Sighting In America | UFOs: The Lost Evidence
9:49
The First UFO Sighting In America | UFOs: The Lost Evidence
已浏览 18.2万 次2020年12月21日
YouTubeQuest TV
A Timeline of the U.F.O.s That Were Shot Down
2:10
A Timeline of the U.F.O.s That Were Shot Down
2023年2月21日
nytimes.com
On Friday, May 31st, discover more about the UFO phenomenon than ever before in a six-part docuseries that goes inside the Pentagon’s research on the unexplained. Watch “Unidentified: Inside America’s UFO Investigation” on History. | HISTORY
0:31
On Friday, May 31st, discover more about the UFO phenomenon than …
已浏览 4.5万 次2019年4月19日
FacebookHISTORY
Watch as this team investigates into known sightings of unidentified crafts with capabilities far beyond our current technology. Unidentified: Inside America's UFO Investigation is starting NOW! | HISTORY
0:23
Watch as this team investigates into known sightings of unidentified cr…
已浏览 1.9万 次2019年6月1日
FacebookHISTORY
The Long Tail of Roswell: A Brief History of Our Most Famous Aliens
The Long Tail of Roswell: A Brief History of Our Most Famous Aliens
2013年7月11日
vice.com
50 years ago, UFO sightings in the United States went bust
2021年6月21日
sciencenews.org
4:11
Breakdown of the history of alleged UFO crashes
2024年1月29日
8newsnow.com
9:30
Have UFO Investigators Found Debris From The 1947 Roswell Inc…
已浏览 27.4万 次2022年7月31日
YouTubeQuest TV
0:21
21K views · 194 reactions | Go inside the government's research i…
已浏览 2.2万 次1 周前
FacebookHISTORY
UFO Sightings in 2021: A Timeline
2021年6月1日
SnopesDan Evon
The UFO Sighting That Started It All | Kenneth Arnold & The Hidden Hi…
已浏览 65 次7 个月之前
YouTubeAncient World
12:34
Largest UFO Sighting in History - What Actually Happened?
已浏览 50万 次2023年8月11日
YouTubeThe Infographics Show
6:43
The U.S. government has released a long-awaited report on UFOs. Fro…
已浏览 7.9万 次2021年6月25日
FacebookBrut
28:40
A brief cultural history of UFOs, from secret Soviet weapons to alie…
2021年7月8日
PBSGreg Eghigian, The Conversation
12:27
24K views · 520 reactions | Now that UFOs or UAPs have been confirm…
已浏览 2.4万 次1 周前
FacebookThe Infographics Show
1:35
US Navy pilot says UFOs followed his battle group to the Middle East…
已浏览 5.5万 次2019年6月20日
FacebookHISTORY
2:49
NASA releases UFO report. Here's what they found
已浏览 53.1万 次2023年9月15日
YouTubeABC7
3:22
Hundreds more UFO sightings included in latest report
2023年1月13日
CBS NewsEleanor Watson
25:31
15 Clearest Looking UFOs in History Caught On Camera
已浏览 42.1万 次2023年12月18日
YouTubeVoyager
5:10
Alderney UFO sighting explained | Why it's one of the most incredibl…
已浏览 44.2万 次2022年1月11日
YouTube7NEWS Australia
6:01
He Witnessed One of the Largest Mass UFO Sightings In History
已浏览 15.4万 次2023年11月10日
YouTubeTamron Hall Show
4:27
Ancient Aliens: Ronald Reagan's Shocking UFO Encounter | History
已浏览 24.4万 次2022年12月8日
YouTubeHISTORY
10:08
3 Famous UFO Encounters from Human History - Ufology
已浏览 4742 次2023年10月21日
YouTubeExtreme Mysteries
8:16
NASA UFO report finds no evidence of 'extraterrestrial origin' for UAP …
2023年9月14日
SPACE.comBrett Tingley
6:12
The Proof Is Out There: UFO Crash Spotted in NASA Photo (Season 3…
已浏览 225.4万 次2022年11月15日
YouTubeHISTORY
Most FAMOUS UFO Sightings Ever Recorded!
已浏览 8.9万 次2018年11月26日
YouTubeOrigins Explained
What is a UFO? The US shot down three mysterious objects as intere…
2023年2月15日
theconversation.com
44:43
UFO Hunters: Alien Surveillance at Secret Government Facilities (S3, …
已浏览 153.2万 次2021年3月2日
YouTubeHISTORY
观看更多视频
静态缩略图占位符