Wikipedia:Today's featured article/January 17, 2012

Mauna Kea is a volcano on the island of Hawaii. Standing 4,205 m (13,796 ft) above sea level, its peak is the highest point in the state of Hawaii. However, much of the mountain is under water; when measured from its oceanic base, Mauna Kea is over 10,000 m (33,000 ft) tall—significantly taller than Mount Everest. In Hawaiian mythology, the peaks of the island of Hawaii are sacred, and Mauna Kea is the most sacred of all. Mauna Kea can be ecologically divided into three sections: an alpine climate at its summit, a Sophora chrysophylla–Myoporum sandwicense forest on its flanks, and an Acacia koa–Metrosideros polymorpha forest, now mostly cleared by the former sugar industry, at its base. With its high altitude, dry environment, and stable airflow, Mauna Kea's summit is one of the best sites in the world for astronomical observation, and one of the most controversial. The Mauna Kea Observatories are used for scientific research across the electromagnetic spectrum from visible light to radio, and comprise the largest such facility in the world. Their construction on a "sacred landscape", replete with endangered species, ongoing cultural practices, and viewplanes used in the traditional Hawaiian measurement of time, continues to be a topic of intense debate and protest. (more...)

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