Community hub
Recent from talks
Knowledge base stats:
Talk channels stats:
Members stats:
Giant Magellan Telescope
The Giant Magellan Telescope (GMT) is a ground-based, extremely large telescope currently under construction at Las Campanas Observatory in Chile's Atacama Desert. With a primary mirror diameter of 25.4 meters, it is expected to be the largest Gregorian telescope ever built, observing in optical and mid-infrared wavelengths (320–25,000 nm). Commissioning of the telescope is anticipated in the early 2030s.
The GMT will feature seven of the world's largest mirrors, collectively providing a light-collecting area of 368 square meters. It is expected to have a resolving power approximately 10 times greater than the Hubble Space Telescope and four times greater than the James Webb Space Telescope. However, it will not be able to observe in the same infrared frequencies as space-based telescopes. The GMT will be used to explore a wide range of astrophysical phenomena, including the search for signs of life on exoplanets and the study of the cosmic origins of chemical elements.
The casting of the GMT's primary mirrors began in 2005, and construction at the site started in 2015. By 2023, all seven primary mirrors had been cast, the first of seven adaptive secondary mirrors was under construction, and the telescope mount was in the manufacturing stage. Other subsystems of the telescope were in the final stages of design.
The project, with an estimated cost of USD $2 billion, is being developed by the GMTO Corporation, a consortium of research institutions from seven countries: Australia, Brazil, Chile, Israel, South Korea, Taiwan, and the United States.
The telescope is located at Las Campanas Observatory, which is also home to the Magellan Telescopes. The observatory is situated approximately 115 km (71 mi) north-northeast of La Serena, and 180 km (112 mi) south of Copiapó, at an altitude of 2,516 m (8,255 ft). The site has been owned by the Carnegie Institution for Science since 1960.
Las Campanas was selected as the location for the GMT due to its exceptional astronomical seeing conditions and clear weather throughout much of the year. The sparse population in the surrounding Atacama Desert, combined with favorable geographical conditions, ensures minimal atmospheric and light pollution. This makes the area one of the best locations on Earth for long-term astronomical observation. The observatory's southern hemisphere location also provides access to significant astronomical targets, including the galactic center of the Milky Way, the nearest supermassive black hole (Sagittarius A*), the nearest star to the Sun (Proxima Centauri), the Magellanic Clouds, and numerous nearby galaxies and exoplanets.
The Giant Magellan Telescope's Gregorian design will produce the highest possible image resolution of the universe over the widest field of view with only two light collecting surfaces, making it the most optically proficient of all extremely large telescopes in the 30-meter class.
Site preparation began with the first blast to level the mountain peak on March 23, 2012. In November 2015, construction was started at the site, with a ground-breaking ceremony. In January 2018, WSP was awarded the contract to manage construction of the Giant Magellan Telescope.
Hub AI
Giant Magellan Telescope AI simulator
(@Giant Magellan Telescope_simulator)
Giant Magellan Telescope
The Giant Magellan Telescope (GMT) is a ground-based, extremely large telescope currently under construction at Las Campanas Observatory in Chile's Atacama Desert. With a primary mirror diameter of 25.4 meters, it is expected to be the largest Gregorian telescope ever built, observing in optical and mid-infrared wavelengths (320–25,000 nm). Commissioning of the telescope is anticipated in the early 2030s.
The GMT will feature seven of the world's largest mirrors, collectively providing a light-collecting area of 368 square meters. It is expected to have a resolving power approximately 10 times greater than the Hubble Space Telescope and four times greater than the James Webb Space Telescope. However, it will not be able to observe in the same infrared frequencies as space-based telescopes. The GMT will be used to explore a wide range of astrophysical phenomena, including the search for signs of life on exoplanets and the study of the cosmic origins of chemical elements.
The casting of the GMT's primary mirrors began in 2005, and construction at the site started in 2015. By 2023, all seven primary mirrors had been cast, the first of seven adaptive secondary mirrors was under construction, and the telescope mount was in the manufacturing stage. Other subsystems of the telescope were in the final stages of design.
The project, with an estimated cost of USD $2 billion, is being developed by the GMTO Corporation, a consortium of research institutions from seven countries: Australia, Brazil, Chile, Israel, South Korea, Taiwan, and the United States.
The telescope is located at Las Campanas Observatory, which is also home to the Magellan Telescopes. The observatory is situated approximately 115 km (71 mi) north-northeast of La Serena, and 180 km (112 mi) south of Copiapó, at an altitude of 2,516 m (8,255 ft). The site has been owned by the Carnegie Institution for Science since 1960.
Las Campanas was selected as the location for the GMT due to its exceptional astronomical seeing conditions and clear weather throughout much of the year. The sparse population in the surrounding Atacama Desert, combined with favorable geographical conditions, ensures minimal atmospheric and light pollution. This makes the area one of the best locations on Earth for long-term astronomical observation. The observatory's southern hemisphere location also provides access to significant astronomical targets, including the galactic center of the Milky Way, the nearest supermassive black hole (Sagittarius A*), the nearest star to the Sun (Proxima Centauri), the Magellanic Clouds, and numerous nearby galaxies and exoplanets.
The Giant Magellan Telescope's Gregorian design will produce the highest possible image resolution of the universe over the widest field of view with only two light collecting surfaces, making it the most optically proficient of all extremely large telescopes in the 30-meter class.
Site preparation began with the first blast to level the mountain peak on March 23, 2012. In November 2015, construction was started at the site, with a ground-breaking ceremony. In January 2018, WSP was awarded the contract to manage construction of the Giant Magellan Telescope.