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Lasers create five new 'stars' in night sky

By Caitlin Stier

14 February 2011

Âé¶¹´«Ã½. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Many big observatories point a single laser at the sky to measure atmospheric turbulence. Recently, the Gemini South telescope tested a five-laser system, reports Kelly Beatty of Sky & Telescope magazine.

See more in our gallery: Lasers create five new ‘stars’ in night sky

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