Join senior curator Michael Neufeld as he discusses the 75th anniversary of Reaction Motors, Inc.., America's first liquid-propellant rocket company. Meet at the Welcome Center in the Boeing Milestones of Flight Hall on the first floor.

Please note: Although Ask an Expert talks are usually held on Wednesdays, this Ask an Expert will be held on Thursday, December 15.

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.