The unusual "UFO" was filmed high in the sky above San Antonio, Texas, just four days ago, by alien investigator Mario Vallejo.
He is convinced he has caught a mythical alien technology called UFO variable on camera.
The cloud-like object was visible in an otherwise cloudless sky, but could it just be a wisp of water vapour.
He said: "For those unfamiliar with this phenomenon UFO variable, it is believed that these crafts are converting the sun's energy into electromagneticity to travel around.
"If you pay close attention you will notice these UFOs have spheres that rotate inside them."
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