... A New Jupiter Oval Rotates . ... 5.01.1999 . ... Credit: Galileo Project , JPL , NASA Explanation: Even Jupiter can do the twist. Large cloud systems on Jupiter rotate, and the newly formed oval pictured above is no different. This new oval formed earlier this year from the collision of two smaller ovals: an occurrence not unlike two large storms merging into one huge hurricane . ... Publications with keywords: oval clouds - Jupiter . Publications with words: oval clouds - Jupiter . ...