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Q6: The apparent recessional velocities of galaxies at
Q16: Galileo supposedly experimented with gravity by dropping
Q20: The minimum size of a meteoroid that
Q24: How does the thickness of Saturn's bright
Q29: Which figure below represents the oldest star
Q37: Remnants of volcanic activity on the asteroid
Q52: The presence of shepherd moons keeps the
Q65: Which of the following moons is thought
Q67: The dust in the interstellar medium comes
Q68: An 8 M<sub> <span class="ql-formula" data-value="\bigodot"><span