According to the man who flew US president Barack Obama during his 2008 campaign tour, virtually all pilots believe in UFOs.
Andrew Danziger, a veteran pilot with 28 years of experience in the cockpit has also admitted he's had his own brush with the unexplained.
The American pilot says he saw a white disc flying through the sky during a standard flight between Kansas and Iowa in April 1989. The white disc then changed into a "giant red ball" and glowed for about 30 seconds before disappearing into the clouds.
According to Danziger, both he and the captain who was also in the cockpit saw the spooky alien craft for about 40 minutes before it began to change colour and disappeared.