Astonished locals spot strange plane bigger than football field soaring above

In a series of dramatic videos that emerged online, eagle-eyed witnesses filmed a huge aircraft, likened to that which you might find in a "science fiction novel" Onlookers have spotted a strange plane larger than an American football field (Image: Getty Images)

Astonished witnesses have gazed skyward in America and caught sight of a mysterious aircraft bigger than an American football pitch cruising overhead. In a series of striking videos that emerged on Reddit, sharp-eyed spectators recorded a colossal plane, compared to something you'd find in a "science fiction novel" , gliding through Californian airspace.

However, the aircraft's origins are probably more down-to-earth, though equally captivating, according to aviation enthusiasts who filmed the airborne wonder. They