A partial solar eclipse is seen over Stonehenge in south west England, March 20, 2015. (Representational photo)REUTERS/Kieran Doherty

Reports of UFO (unidentified flying objects) sightings keep coming in even as people continue to debate on alien's existence. Adding more fuel to the fire, NASA scientists recently expressed their bewilderment over the bright spots found in the picture of dwarf planet Ceres taken by its spacecraft Dawn. Now, a new report has emerged that a disc-shaped flying saucer was spotted hovering over Stonehenge.

A black disc-shaped UFO measuring around 20 to 30 feet wide was recently spotted hovering above Stonehenge, reported UFO Sightings Blog (via Mail Online)

The black object seen in the picture could be just a bird but claim of a UFO flying over Stonehenge has evoked lots of curiosity among alien enthusiasts, as some had come up with a bizarre idea that ancient aliens used the site as a launch pad for their spacecrafts.

Stonehenge is a prehistoric monument located in Wiltshire, England, and has been declared a World Heritage Site by the UNESCO.

It may be mentioned that NASA's photos of the Mars and dwarf planet Ceres have caused quite a stir off late with UFO enthusiasts claiming that the topographies of these planets hint existence of aliens.

Images of the 598 miles diameter dwarf planet, Ceres sent by NASA's Dawn from 2,700 miles (4,400 kilometers) has several bright spots. Scientists have no clue of what those bright spots could be but UFO enthusiasts have gone to the extent of claiming them as alien cities.

Interestingly, a photo of the Mars captured by NASA's Curiosity Rover on 7 May, 2015, has a pyramid shaped structure that looks strikingly similar to the ones in Egypt. Some have claimed that it is proof of alien's existence and ancient civilisation

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