Old solar mirrors probe deep space


By Hazel Muir A DEFUNCT solar power station in the Pyrenees has been reborn as a gamma-ray telescope, and now physicists are picking up signals from exotic galaxies and exploded stars. Celeste, as the new detector is called, rose from the ashes of the Thémis experimental solar power station near Font-Romeu in France. The station consisted of around 200 steerable mirrors which focused sunlight onto a collector at the top of a tower to generate power. The power station closed in the mid-1980s,
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