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The younger the universe was, the more abundant quasars were, according to our deepsurveys.
Q5: A pulsating variable star with a period
Q12: The most famous case of a more
Q30: Hubble's Law starts as a plot of
Q35: Which of the following statements concerning political
Q39: About _ percent of the American adult
Q67: Compare the Copernican principle with the assumptions
Q74: A surface explosion on a white dwarf,caused
Q93: The Roche lobe of a star in
Q95: The concept that on the grandest of
Q97: If the geometry of the universe can