Mysterious new radio signal sparks speculation about alien megastructures
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A strong radio signal detected from a star 94 lightyears away has caught the attention of several international astronomers. The signal and its star, HD 164595, are raising familiar questions of a complex extraterrestrial civilization - including the proposal of another alien megastructure harnessing billions of watts of energy from the star. A Russian telescope picked up on the curious signal, which is now being considered “a strong candidate for SETI” by hopeful scientists. The...