The Ask An Expert lecture series at the National Mall building is presented every Wednesday at noon. A Museum staff member talks to the public about the history, collection, or personalities related to a specific artifact or exhibition in the Museum. Visitors at the National Mall building enjoy learning about the Pioneer 10 spacecraft from Museum scientist Andrew Johnston. Short Ask an Expert lectures such as this are offered once a week. Pioneer 10 was the first spacecraft to fly by Jupiter, the largest planet in the Solar System. How to attend

National Air and Space Museum in Washington, DC

6th St. and Independence Ave SW. Washington, DC 20560