A jaw-dropping video from Russia shows a Boeing 787 jet creating a massive vapor trail as it cruises through the sky.
The footage was captured by a passenger on a different aircraft who spotted the remarkable scene as the Boeing jet was flying at around 33,000 feet.
Aviation experts say that the vapor trail is created by hot exhaust from the jet meeting the cold air in the sky.
However, those who believe in the chemtrail conspiracy theory no doubt see something entirely different unfolding in the video.
Check out the incredible footage at the Coast to Coast AM website.