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Source: FILE PHOTO: The Royal Marines and Royal Navy worked with a private company to test a new jet suit.

What people saw off the coast of Cornwall wasn’t a mysterious object, it was a rare optical illusion called a Fata Morgana.

Boat operator Mike Hancock spotted a large, shifting shape on the horizon that at times even looked like a bear. Online, others guessed it could be a ship, crane, or something unknown.

In reality, it was a distant aircraft carrier but the atmosphere was distorting the view. A Fata Morgana occurs when layers of warm and cold air bend light like a lens, making faraway objects appear stretched, flipped, stacked, or constantly changing shape.

As those air layers shifted, the image kept changing in real time, giving the impression the object was transforming.

He also saw what looked like multiple horizons, because light was bending in different directions, making the sea line appear doubled or even tripled.

In short, nothing unusual was in the water, the air itself was warping the image, turning an ordinary ship into something that looked extraordinary.

Lana Backman