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The energy output per second of a typical quasar is equal to that emitted by the Sun in
Q22: Which parameters of star motion in the
Q52: Which type of meteorite was found to
Q86: In cosmology, the constant that is intimately
Q100: Suppose the Milky Way Galaxy is 1
Q101: An astronomer is examining quasars and happens
Q114: What is the basic shape of a
Q116: Suppose the universe contained only "normal" matter,
Q121: Variable stars such as Cepheid variables are
Q156: The MOST important reason globular clusters are
Q194: A typical spiral galaxy has _ stars