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The existence of stars composed almost entirely of neutrons was first predicted by
Q2: Many possible explanations were offered when pulsars
Q3: Which of these objects is NOT an
Q28: Which of these statements correctly describes the
Q44: The Sun is a member of which
Q57: Which of these has been associated with
Q83: Suppose that a clock is carefully calibrated
Q99: The 21-cm line is one of the
Q113: Which of these statements about white dwarfs
Q156: It is now believed that MOST stars
Q209: Which force induces the core to contract