This "amazing" footage shows a diamond-shaped UFO which was spotted from inside a plane, as it flew 43,000ft above Texas in the USA.
This new clip was recorded by a man, identified only as Steve, who works as a director of aircraft maintenance for a corporate jet fleet in the USA.
Tyler from SecureTeam said: "It was unbeknown to anybody at the time, but afterwards it was realised that this odd-diamond shaped UFO looks eerily similar to the UFO seen in one of the top ten most notorious and well researched UFO sightings known in the entire world."
The Cash-Landrum incident in December 1980 involved two women, Betty Cash and Vicky Landrum, who were travelling home from dinner with Vicky's seven-year-old grandson Colby when they witnessed a huge diamond-shaped object in the sky.
They reported it emitting flames from underneath and as Betty got out to invesitage she was left with terrible burns.
Both women say the object started to move away when 23 military-style helicopters approached it.