Magic Star Trails; October 14 2011: http://apod.nasa.gov/apod/ap111014.html
By using a camera and creating a timelapse, this photographer was able to clearly show the color spectrum hidden in every star. This picture should how colorful the sky was when the timelapse was accelerated and the pictures combined. The star trails are also reflected in one of a pair of 17 meter diameter multi-mirrored Magic telescopes. Gamma rays - photons with over 100 billion times the energy of visible light. The fast cameras see brief flashes also called Cherenkov light and can ultimately relate optical flashes to cosmic sources of extended gamma rays.
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