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MAUNA KEA, Hawaii, Dec. 23 (UPI) -- Britain's astronomical Infrared Telescope has begun operating at the summit of the dormant volcano Mauna Kea in Hawaii.

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MAUNA KEA, Hawaii, Feb. 25 (UPI) -- Hawaiian scientists said Wednesday they have found the nearest example of a young planet-forming star.

Distant galaxy dates to end of Dark Ages

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Hawaii telescope sees galaxy far, far away

HILO, Hawaii, Nov. 4 (UPI) -- Researchers using Japan's Subaru telescope in Hawaii have discovered a galaxy 12.9 billion light-years from Earth -- the most distant galaxy found to date.

Galactic center hosts starving black hole

KAILUA-KONA, Hawaii, Nov. 8 (UPI) -- Massive stars moving at blazing speeds in eccentric orbits around the center of the Milky Way galaxy prove there is a black hole there, astrophysicists reported Friday.

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'Brown dwarf' planet puzzles astronomers

WASHINGTON, Jan. 7 (UPI) -- Astronomers on Monday said by using optical telescopes they have been able to snap pictures of a supermassive object orbiting a nearby star.

Scientists find galaxy building block

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Mauna Kea (English pronunciation: /ˌmɔːnə ˈkeɪ.ə/ or /ˌmaʊnə ˈkeɪ.ə/, Hawaiian: ) is a dormant volcano on the island of Hawaiʻi. 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. Mauna Kea is about a million years old, and has thus passed the most active shield stage of life hundreds of thousands of years ago. In its current post-shield state, its lava is more viscous, resulting in a steeper profile. Late volcanism has also given it a much rougher appearance than its neighboring volcanoes; contributing factors include the construction of cinder cones, the decentralization of its rift zones, the glaciation on its peak, and the weathering effects of the prevailing trade winds. Mauna Kea last erupted 6,000 to 4,000 years ago and is now considered dormant.

In Hawaiian mythology, the peaks of the island of Hawaiʻi are sacred, and Mauna Kea is the most sacred of all. An ancient law allowed only high-ranking tribal chiefs to visit its peak. Ancient Hawaiians living on the slopes of Mauna Kea relied on its extensive forests for food, and quarried the dense volcano-glacial basalts on its flanks for tool production. When Europeans arrived in the late 18th century, settlers introduced cattle, sheep and game animals, many of which became feral and began to damage the mountain's ecology. Mauna Kea can be ecologically divided into three sections: an alpine climate at its summit, a Sophora chrysophylla–Myoporum sandwicense (or māmane–naio) forest on its flanks, and an Acacia koa–Metrosideros polymorpha (or koa–ʻōhiʻa) forest, now mostly cleared by the former sugar industry, at its base. In recent years, concern over the vulnerability of the native species has led to court cases that have forced the Hawaii Department of Land and Natural Resources to eradicate all feral species on the mountain.

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. Since the creation of an access road in 1964, thirteen telescopes funded by eleven countries have been constructed at the summit. 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" continues to be a topic of debate. Studies are underway to determine their effect on the summit ecology, particularly on the rare Wēkiu bug.

This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia article "Mauna Kea."
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