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Q22: The seasonal polar caps on Mars,which grow
Q53: If water caused the huge outflow channels
Q54: The surface of Mars is surprisingly smooth
Q60: What is differential rotation,and what surprises did
Q73: What causes the changing dark and light
Q77: Mercury's smooth plains are most similar to
Q84: What is the primary effect that the
Q85: The partial trapping of solar radiation is
Q85: Why is the southern hemisphere of Mars
Q93: Why does Mars appear fainter than Venus,as