Although they were built to do the same thing-carry people to the Moon-the Saturn V and N1 rockets look very different. Join Center for Earth and Planetary Studies geologist Bob Craddock as he explains how both rockets functioned and why only one of them worked. 

Meet at the Museum's "Great Seal," in front of the Welcome Center, in the Boeing Milestones of Flight Hall on the first floor.  

About the Ask an Expert lecture series: Every Wednesday at noon in the National Mall Building, a Museum staff member talks to the public about the history, collection, or personalities related to a specific artifact or exhibition in the Museum.