Giant Storm Systems Battle on Jupiter . ... Credit Copyright: Voyager 2, NASA Explanation: Two of the largest storm systems on Jupiter are colliding, and nobody is sure what will result. The larger storm is the famous Great Red Spot , while the smaller is a large white oval . ... The white oval is part of a belt of clouds that circles Jupiter faster than the Great Red Spot. The oval started being slowed by the Great Red Spot two weeks ago and the collision could last another month. ...