Polishing of mirror for use in Gemini telescope

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Polishing of mirror for use in Gemini telescope

Telescope mirror manufacture. Manufacture of the mirror destined for use in one of the two Gemini telescopes. The polishing machine (white, centre left) uses circular scrubbing patterns to smooth the mirrors surface to within one micrometre. This 8-metre diameter mirror is only 20 centimetres thick. The twin Gemini telescopes, each with a single mirror, are being built at Mauna Kea, Hawaii, and Cerro Pachon, Chile. They will be used for optical and infrared observations. The Mauna Kea telescope is expected to be completed by the end of 1998. Photographed in 1997 at the REOSC workshops in Melun, France

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6447529

© DAVID PARKER/SCIENCE PHOTO LIBRARY

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EDITORS COMMENTS
This print captures the meticulous process of polishing a mirror for use in the Gemini telescope, showcasing the intricate craftsmanship involved in telescope mirror manufacture. The image showcases a state-of-the-art polishing machine, situated prominently at the center left of the frame. This advanced device utilizes circular scrubbing patterns to achieve an astonishing level of precision, smoothing the mirror's surface to within one micrometre. The sheer scale and dimensions of this particular mirror are awe-inspiring; measuring 8 meters in diameter yet only 20 centimeters thick. It is destined for deployment at Mauna Kea, Hawaii, as part of one of two Gemini telescopes being constructed there and at Cerro Pachon, Chile. These cutting-edge instruments will enable optical and infrared observations that push the boundaries of astrophysics. Taken in 1997 at REOSC workshops in Melun, France, this photograph offers a glimpse into the behind-the-scenes efforts required to bring such groundbreaking technology to life. With completion expected by late 1998 for the Mauna Kea telescope alone, it underscores both the dedication and expertise necessary to propel our understanding of space forward. This remarkable image from Science Photo Library serves as a testament not only to human ingenuity but also highlights how collaboration across borders can lead us towards new frontiers in astronomy without mentioning any commercial use or specific companies involved.

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