Through community engagement and stewardship that protects, preserves, and enhances Maunakea, we provide a world-class center dedicated to education, research, and astronomy for all of Hawai‘i. This chart shows all the mirrors of the optical and infrared telescopes on Mauna Kea to the same scale (click to enlarge) The Hubble Space Telescope's mirror is similar in size to that of the UH 2.2 meter telescope -- the second smallest telescope on the mountain. So, are there too many telescopes on Mauna Kea? The site lies at an elevation almost twice that of any other major observatory and above 40 percent of the Earth’s atmosphere; there is thus less intervening atmosphere to obscure the light from distant stellar objects. an ‘ohana of observatories.

If you are planning to visit the summit, we highly recommend that you stop at the Visitor Information Station (VIS) at 9,200 ft to receive a current weather update, safety information, and to adjust to the change in altitude. We strive to strengthen the future of Maunakea as a natural, cultural, and scientific environment. community & outreach. Together, the Observatories make Maunakea the most scientifically productive site for astronomy world-wide. A judge in Hawaii denied a request for a temporary restraining order that would have prevented scientists from building another telescope on Mauna Kea.


Mirror sizes. Check out the Maunakea Observatories website. Maunakea is one of the only places in the world where you can drive from sea level to 14,000 feet in about 2 hours, so altitude sickness is a high possibility.

Take a look at one more image below, which shows a view of the summit of Mauna Kea taken by astronauts on board the International Space Station on December 26, 2013. Note the image caption that mentions how truly tiny the telescopes are compared to the size of the mountain itself.

Visiting Maunakea. This chart shows all the mirrors of the optical and infrared telescopes on Mauna Kea to the same scale (click to enlarge) The Hubble Space Telescope's mirror is similar in size to that of the UH 2.2 meter telescope -- the second smallest telescope on the mountain.

Demonstrators block the Maunakea Access Road on July 15, 2019, to oppose the construction of the Thirty Meter Telescope.
Mirror sizes. Mauna Kea is the site of many major telescopes because its viewing conditions are the finest of any Earth-based observatory. Les observatoires du Mauna Kea sont un ensemble d'observatoires astronomiques indépendants, comptant les télescopes parmi les plus grands et les plus puissants du monde et situés au sommet du volcan Mauna Kea sur l'île d'Hawaï.Ils couvrent une zone de 2 km 2 connu sous le nom anglophone de astronomy Precinct - enceinte d'astronomie dans la réserve scientifique de Mauna Kea. The professor continues, “The astronomical community has had- for a long time- an astronomical reserve area on top of Mauna Kea, which is managed by the University of Hawaii for the U.S. Park Service.

Mauna Kea is the site of many major telescopes because its viewing conditions are the finest of any Earth-based observatory.