As soon as you have done all the tasks of one level the crater changes its appearance. It is now active as happiness booster, but you cannot develop it further till the next viewing. Meteorite viewings: * February (?), 2015 * March 17th, 2015 * April 24th, 2015 * May 22nd, 2015 * June 12th, 2015 * September 5, 2015 * October 5th, 2015 * November 16th, 2015 * January 18 - 25, 2016 The range is divided into 3 zones: * Near zone * Middle zone * Far zone The levels of the Zone of Influence for this building look like this: