Two and a half kilometres beneath the Antarctic ice, a cubic kilometre of frozen water has been wired with 5,160 light sensors, turning the South Pole itself into a telescope that looks down through the entire planet to catch particles arriving from the other side of the sky

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At the South Pole, the sky is not the only direction from which astronomy can be done. Buried in the ice below the Amundsen-Scott South Pole Station is an observatory with no mirror, no lens and no conventional camera. Its detecting elements are 5,160 glass spheres, each holding a sensitive photomultiplier tube and its electronics. [...] The post Two and a half kilometres beneath the Antarctic ice, a cubic kilometre of frozen water has been wired with 5,160 light sensors, turning the South Pole itself into a telescope that looks down through the entire planet to catch particles arriving from the other side of the sky appeared first on Space Daily .