Case file · Folklore / legend
The 'hole at the North Pole' satellite photo
A mosaic of images taken by the US weather satellite ESSA-7 on 23 November 1968 showed a dark circle over the North Pole, and Ray Palmer's 'Flying Saucers' magazine printed it in 1970 as proof of a polar opening into the hollow Earth.
1968 CE · 89.50, 0.00 · status: explained
The account
The picture is still widely shared online, along with similar later images.
The sceptical view
The circle is the area in polar night the satellite could not light up, left blank when the daytime images were stitched together.