Is Earth a 'hollow planet'? Does it have an entry point into its centre located at the North Pole?
Look at the strange circle at the top of the photograph below. Pretty interesting huh? And it lies on the edge of the polar ice cap - not far from where one would expect to find a Polar Hole.
Well, its no Polar Hole. Some calculations showed that it lay near the Aleutian islands and is a weather phenomenon known as the Aleutian Low.
