The Dark Forest theory is one proposed solution to the famed Fermi Paradox, which has bewitched astronomers for more than half a century. To put it concisely, the paradox asks if the cosmos is nearly ...
A portrait by the Austrian artist Gustav Klimt was sold for $236.4m (£179m) in New York on Tuesday, making it the second-most expensive piece ever sold at auction. Six people took part in a 20-minute ...
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