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One of the first people to look for radio signals from extraterrestrial civilizations was
Q1: The 2003 observation of a very distant
Q6: A _ is a decision by an
Q25: In the search for intelligent life,why do
Q39: Marx argued that governments were basically dominated
Q49: In the Drake equation for estimating the
Q52: When did Einstein originally introduce his theory
Q87: Churches in the United States were important
Q162: What do we mean when we say
Q163: When Hubble did his early work on
Q334: MOST quasars produce their strongest emissions in