We all learned in grade school geography about something called the Midnight Sun, where it's possible for the Sun to be up for 24 hours straight. How does that happen?
The video shows Earth on the Summer Solstice (in the northern hemisphere). Imaging you are standing somewhere above the Arctic Circle, then watch what happens as the Earth goes through two full rotations (days). The Sun would appear to go around you, but it would never set.
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