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Home / Technology / The largest telescope in the world has come a step closer to completion

The largest telescope in the world has come a step closer to completion



GMT is an international attempt to develop a telescope that delivers ten times clearer images than the Hubble Space Telescope. When it does, GMT helps scientists sort out some of the biggest questions, like being alone in the universe. Astronomers can collect more light than with a telescope ever built and with the highest resolution ever.

However, achieving this is not an easy task. The team laid the foundation in 201

5 and the telescope is not expected to be ready before 2027. This is partly due to the complexity of the mirrors. Each primary segment is curved to a precise shape and polished to a light wavelength of about one millionth of an inch. And thanks to a complicated honeycomb shape, the finished glass is mostly hollow, making it lighter and easier to cool.

While this second segment lasted seven years, the University of Arizona significantly accelerated the surface polishing process. The GMT team hopes that technology replication will help drive future segments through production even faster.


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