Measured from its base to its summit, Mauna Kea is the tallest mountain in the world at roughly 32,000 feet. The site is already home to the world’s largest astronomical observatory thanks to the dry, clean air at the summit, which rises 13,796 feet above sea level, and the mountain’s distance from light pollution. Telescopes already on Mauna Kea are able to view the faintest galaxies.
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