Pluto's Moon Has a Mysterious Red North Pole, And We May Finally Know Why

Pluto’s Moon Has a Mysterious Red North Pole, And We May Finally Know Why

Pluto’s life partner, Charon, has a disarming red ‘cap’. Ever since New Horizons snapped the moon‘s rust-tinted north pole on its 2015 flyby, scientists have pondered the planetary processes responsible for leaving such a bold landmark.   Scientists initially suspected the iron-colored smear (nicknamed Mordor Macula) was methane captured from Pluto’s surface, its red color …

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