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After five decades, the search for extraterrestrial intelligence has failed to find any alien signals. SETI researchers are still optimistic that we will one day find evidence for intelligent life somewhere in our galaxy. A new book by SETI scientist, Seth Shostak, reviews the history, the controversies and the reasons for continuing the search.
Originally posted by kirils
After five decades, the search for extraterrestrial intelligence has failed to find any alien signals. SETI researchers are still optimistic that we will one day find evidence for intelligent life somewhere in our galaxy.