Mystery Behind the 'Phoenix Lights' UFO Sighting | It's the 23rd anniversary of “The Phoenix Lights” – the largest UFO sighting in modern history. 👽Have you seen something you can't explain? Tell
![FOX 10 Phoenix on Twitter: "Almost 19 years ago many Phoenix residents saw the famous Phoenix Lights https://t.co/4IdPOPBiVJ https://t.co/QmB0n6UbLw" / Twitter FOX 10 Phoenix on Twitter: "Almost 19 years ago many Phoenix residents saw the famous Phoenix Lights https://t.co/4IdPOPBiVJ https://t.co/QmB0n6UbLw" / Twitter](https://pbs.twimg.com/media/CcfrpaVXIAI-qUQ.jpg)
FOX 10 Phoenix on Twitter: "Almost 19 years ago many Phoenix residents saw the famous Phoenix Lights https://t.co/4IdPOPBiVJ https://t.co/QmB0n6UbLw" / Twitter
What were the Phoenix Lights? | The Phoenix Lights come up every year about this time. 19 years ago this March, thousands of people saw what they believed were UFOs over the
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