NASA has captured the incredible moment a planet-sized UFO hovers near the sun before being hit by a solar explosion.

Video captured by NASA's Solar and Heliospheric Observatory shows the massive object remain motionless at a very close distance to the sun.

It can be seen near the lower region of the sun and did not move an inch when it was blasted by a flare.

Scott Waring, UFO expert of ET Data Base, told International Business Times that the video showed only the rear portion of the object due to its orientation, or because of the limited amount of visible light hitting it.

Video captured by NASA shows a massive UFO hiding at the lower region of the Sun

Mr Waring has seen similar sightings in previous videos including footage of another object, about five times bigger than Earth, exiting the sun.

Based on the similarities of these sightings, he believes the sun could be hollow and could even house entire systems of alien planets.

The Hollow Sun Theory suggests the extra-terrestrial beings from those planets fly out through gigantic door-like structures on the sun's surface.

He also believes the video is another piece of evidence that proves the existence of alien life.

The mysterious object remained motionless as the Sun emitted its flare at it
UFO expert Scott Waring suggested the UFO could be similar to the size of a planet

Mr Waring also bizarrely claimed the US government and NASA are 'covering up' the truth regarding aliens and UFOs.

He wrote in a blog post: "It's amazing that so many videos of UFOs exist and yet the US government won't take any of it seriously.

"Which means they are deliberately hiding the truth from the public."