Mauna Kea is a dormant volcano in Hawaii that has many a claim to fame. It&rsquos the world&rsquos tallest mountain when measured from its base under the ocean. It&rsquos considered a sacred site with ties to ancestry and Creation for native Hawaiians. And with its 4,207m elevation, dry environment and stable winds, it&rsquos one of the best locations for space observation in the Northern Hemisphere.