I never gave much thought to aliens beyond Star Wars. I put extraterrestrials and their flying saucers in a box marked “nonsense” long ago, along with political manifestos, loyalty cards, Black Friday, fairies, pixies, elves, ghosts and ghouls.

Then, in 2017, the New York Times published an article with the headline “Glowing Auras and ‘Black Money’: The Pentagon’s Mysterious UFO Program”. Apparently, the US government had been chasing UFOs for years. These weren’t the ramblings of the kind of straw-chewing rancher you would see in a sci-fi film; the story was told by a military intelligence officer called Luis Elizondo. He claimed he ran a secret Pentagon programme called the Advanced Aerospace Threat Identification Program (AATIP), which had found evidence that UFOs were flying around military bases, behaving in ways that defied the laws of physics.

A couple of striking videos accompanied the New York Times piece and were subsequently released by the Pentagon. One appeared to show a dark, glowing object that looked remarkably like a flying saucer, while the voices of startled navy pilots played in the background.

“There’s a whole fleet of them; look at the SA,” came the first voice on the video, referring to the multifunctional cockpit display.

“My gosh!” a second voice replied.

“They’re all going against the wind. The wind is 120 knots [138 miles an hour] out of the west,” chimed in a third voice.

“Look at that thing, dude. Look at that thing … It’s rotating!”

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