This is a view inside a particle detectors at Daya Bay - Photo by Roy Kaltschmidt #photo #science pic.twitter.com/IaMcn4QYV6— Reg Saddler (@zaibatsu) July 18, 2016
The Oldest Known Calendar in Europe is based on the Orion Constellation https://t.co/Ahi0PDdRWF #Cosmology pic.twitter.com/nuarPap4Nw— Reg Saddler (@zaibatsu) July 19, 2016
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