Round 10: Tossup 11

This body has a nearly-polygonally arranged group of eight cyclones at its north pole and a group of five at its south pole. (-5[1])This body’s inward and outward motion, proposed by the Grand Tack hypothesis, (15[1])may account for the unexpected presence (15[1])of icy objects in the inner part of the solar system. After passing inside the orbit of this planet’s moon Metis in 1992, the comet (*) Shoemaker-Levy 9 broke up before colliding with this planet in 1994. The unusually low mass of Mars and the Kirkwood gaps in the asteroid belt are caused by this planet’s gravity. The Great Red Spot is on, for 10 points, what largest planet in the solar system? ■END■

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