Sharpening a Heavenly Image: Clear view of globular cluster's crowded core | Science News

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Sharpening a Heavenly Image: Clear view of globular cluster's crowded core

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12:21pm, June 11, 2003

Using innovative optics to take the twinkle out of starlight, a telescope in Hawaii has recorded the sharpest-ever infrared images of the globular cluster M-13, a crowded grouping of Milky Way stars. The resolution is comparable to discerning the separation between car headlights on the Golden Gate Bridge while standing 3,850 kilometers away in Hawaii. Researchers presented the images last week at a meeting of the Canadian Astronomical Society in Waterloo, Ontario.

Like other so-called adaptive-optics systems, the device installed on the Gemini North Telescope atop Hawaii's Mauna Kea reduces blurriness by using a flexible mirror whose computer-controlled shape changes 1

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