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________ galaxies seem to represent a transition between quasars and similar active nucleicompared to more normal spirals.
Q1: How does Drake define a technological civilization?<br>A)one
Q9: In GUTs, gravity was the first force
Q11: Michelson and Morley demonstrated that the speed
Q17: Evolution of a star off the main
Q56: When a star becomes a red giant,
Q61: The low-density universe is an open one,
Q66: Most large spirals and ellipticals are comparable
Q79: All of the following are clusters of
Q105: There is no difference in the light
Q122: A system of terrestrial-sized planets has been