Going around the sun : some planetary fun /
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 人氣指樹
Our Earth is part of a fascinating planetary family--eight planets and an odd bunch of solar system "cousins"--that spin, roll, tilt, blow, and whirl around the Sun. Here, to the tune of "Over in the Meadow," young ones can get a glimpse of our remarkable neighborhood, and our place in a very big universe. Simultaneous.
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