The Amundsen–Scott South Pole Station lies within 100 meters (330 feet) from the Geographic South Pole, making it the southernmost continually inhabited place on the planet. Red lights are used outside during the winter darkness as their spectrum does not pollute the sky, allowing scientists to conduct astrophysical studies without artificial light interference. The green light in the sky is the aurora australis.
Photo credit: Chris Danals, National Science Foundation
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