What is the name of the new telescope that was approved in April 2013?
By 1970, two 24 in (0.6 m) telescopes had been constructed by the US Air Force and Lowell Observatory. In 1973, Canada and France agreed to build the 3.6 m CFHT on Mauna Kea. However, local organisations started to raise concerns about the environmental impact of the observatory. This led the Department of Land and Natural Resources to prepare an initial management plan, drafted in 1977 and supplemented in 1980. In January 1982, the UH Board of Regents approved a plan to support the continued development of scientific facilities at the site.  In 1998, 2,033 acres (823 ha) were transferred from the observatory lease to supplement the Mauna Kea Ice Age Reserve. The 1982 plan was replaced in 2000 by an extension designed to serve until 2020: it instituted an Office of Mauna Kea Management, designated 525 acres (212 ha) for astronomy, and shifted the remaining 10,763 acres (4,356 ha) to "natural and cultural preservation". This plan was further revised to address concern expressed in the Hawaiian community that a lack of respect was being shown toward the cultural values of the mountain.Today the Mauna Kea Science Reserve has 13 observation facilities, each funded by as many as 11 countries. There are nine telescopes working in the visible and infrared spectrum, three in the submillimeter spectrum, and one in the radio spectrum, with mirrors or dishes ranging from 0.9 to 25 m (3 to 82 ft). In comparison, the Hubble Space Telescope has a 2.4 m (7.9 ft) mirror, similar in size to the UH88, now the second smallest telescope on the mountain.A "Save Mauna Kea" movement, believes development of the mountain to be sacrilegious. Native Hawaiian non-profit groups such as Kahea, concerned with cultural heritage and the environment also oppose development for cultural and religious reasons. The multi-telescope "outrigger", proposed in 2006 was eventually canceled. A planned new telescope, the Thirty Meter Telescope (TMT), has attracted controversy and protests. The TMT was approved in April 2013. In October 2014, the groundbreaking ceremony for the telescope was interrupted by protesters causing the project to temporarily halt. In late March 2015, demonstrators blocked access of the road to the summit again. On April 2, 2015, 300 protestors were gathered near the visitor's center when 12 people were arrested with 11 more arrested at the summit. Among the concerns of the protest groups are the land appraisals and Native Hawaiians consultation. Construction was halted on April 7, 2015 after protests expanded over the state. After several halts, the project has been voluntarily postponed. Governor Ige announced substantial changes to the management of Mauna Kea in the future but stated the project can move forward. The Supreme Court of Hawaii approved the resumption of construction on 31 October 2018.
Thirty Meter Telescope