Steven Barone has scores of videos on his YouTube channel, UFOs in the USA, that he suggests are alien UFOs or top secret US space vehicles hovering over the Nellis Air Force Base in Nevada.
The base, like top-secret Area 51 in the Nevada desert, is alleged by conspiracy theorists to be where the US authorities hide the remains of crashed flying saucers and dead aliens, and where secretive technology is developed and tested.
Some even claim that visiting aliens have been allowed to use the bases to keep them from public view.
But, Mr Barone claims to be on to the secret via his YouTube channel.
He says he may have filmed space craft developed at the air base on numerous occasions.
His latest footage was filmed on February 19 near the base.
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