The world's largest solar telescope is going to be inaugurated this week, and it will be used to study the sun. The primary mirror of the Daniel K. Inouye Solar Telescope is four meters high and 13 feet wide.

The National Science Foundation released a new image of the sun's chromoosphere to celebrate the telescope's inauguration. This is the part of the sun's atmosphere that is above the surface, and the image shows a region that can reach as high as 13,000 degrees.

The first images of the chromosphere – the area of the Sun’s atmosphere above the surface .
The first images of the chromosphere – the area of the Sun’s atmosphere above the surface – taken with the Daniel K. Inouye Solar Telescope on June 3rd, 2022. The image shows a region 82,500 kilometers across at a resolution of 18 km. This image is taken at 486.13 nanometers using the hydrogen-beta line from the Balmer series. NSO/AURA/NSF

The Inouye Solar Telescope is the world's most powerful solar telescope that will change the way we explore and understand our sun. Predicting and preparing for solar storms will be transformed by its insights.

The summit of the Haleakal volcano is a sacred site for many native Hawai'ians. Similar to protests against the construction of the Thirty Meter Telescope at Mauna Kea, there were protests about the use of this sacred land for telescope construction.

The leadership of the Inouye telescope has emphasized its debt to the people of Hawai'i and formed a special working group to make compromises in order to get the telescope built. Some opponents of the construction have been happy with the efforts.

The completion of the telescope's commissioning phase was celebrated by representatives of both the scientific and native Hawai'ian communities. The National Solar Observatory is a research center run by the Association of Universities for Research in Astronomy.

The world's largest solar telescope is now in science operations, and AURA is thankful for all who made it possible. The National Science Foundation and the U.S. Congress have supported the Inouye Solar Telescope Team over the years. The new era of solar physics is about to start.

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