Nation/World

China and India will partner on world’s largest telescope

In this artist rendition provided by TMT, the Thirty Meter Telescope is shown. China and India have signed on to be partners for a project to build the telescope. (Associated Press)
In this artist rendition provided by TMT, the Thirty Meter Telescope is shown. China and India have signed on to be partners for a project to build the telescope. (Associated Press)

HONOLULU – China and India are catapulting to the forefront of astronomy research with their decision to join as partners in a Hawaii telescope that will be the world’s largest when it’s built later this decade.

China and India will pay a share of the construction cost – expected to top $1 billion – for the Thirty Meter Telescope at the summit of Mauna Kea volcano. They will also have a share of the observation time.

It’s the first advanced telescope in which either nation has been a partner.

The Thirty Meter Telescope’s segmented primary mirror, which will be nearly 100 feet – or 30 meters – long, will give it nine times the light-collecting area of the largest optical telescopes in use today. Its images will also be three times sharper.

The telescope, known as TMT, will be able to observe planets that orbit stars other than the sun and enable astronomers to watch new planets and stars being formed. It should also help scientists see some 13 billion light years away for a glimpse into the early years of the universe.

The University of California system, the California Institute of Technology and the Association of Canadian Universities for Research in Astronomy founded the telescope, which is expected to be finished in 2018.

China joined as an observer in 2009, followed by India the next year. Both are now partners, with representatives on the TMT board. Japan, which has its own large telescope at Mauna Kea, the 8.3-meter Subaru, is also a partner.

TMT may not hold the title of world’s largest for long, however, as a partnership of European countries plans to build the European Extremely Large Telescope, which would have a 42-meter, or 138-foot, mirror.



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