Remember not to say "dark side of the Moon" when referring to the "far side of the Moon" – this graphic shows the dark side is always in motion. In a 12hour period the darkness moves 185km across the lunar equator, so you can actually see lunar phase changes over a single night! pic.twitter.com/Dr3qmwv412
— Dr James O'Donoghue (@physicsJ) November 3, 2019
via Twitter https://twitter.com/physicsJ
November 03, 2019 at 08:40AM
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