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Q1: For which type of binary system are
Q4: The fact that Jupiter's radius is contracting
Q16: In the Great Debate of 1920, Curtis
Q16: Approximately _ years ago, _ began producing
Q18: When Voyager I passed through Jupiter's magnetosphere,
Q22: Most asteroids are found in orbit around
Q31: Through what process do some living organisms
Q50: In the CNO cycle, carbon is used
Q62: Based on the photo shown below, this
Q66: Two years after first being observed, astronomers