24 September 1990 September 24, 2015 Author: Staff A periodic Great White Spot is observed on Saturn for the first time. Famous Words of Inspiration..."Act like you expect to get into the end zone." Christopher Morley — Click here for more from Christopher Morley Related posts: 28 March 1990 9 September 1990 9 September 1990 22 May 1990 25 March 1990 13 November 1990 19 November 1990 31 Januray 1990 22 June 1990 13 November 1990 Categories: History Tags: 1990, 24 September