We want to hear from you! Fill out our listener survey at s.si.edu/airspace2025 Our museum collection, like a lot of other museums' collections, can be a working collection. That means that scientist come to do air or space research using objects in the museum. Sometimes it's as simple as an engineer coming after hours to look a little closer at a plane or spacecraft so they can better understand how it works. And other times researchers leave seismometers on the Viking Lander for several weeks.  Thanks to our guests in this episode:  Dr. Malcolm Collum, Head Conservator-National Air and Space Museum  Dr. Ben Fernando, Post-Doctoral Researcher-Johns Hopkins University  Dr. Kevin Lewis, Vice Chair and Professor in Earth and Planetary Science-Johns Hopkins University  Dr. Andy Lazarewicz, Formerly of the Viking Seismology Team Additional thanks to Lisa Young and Becca Hiatt of the National Air and Space Museum's Collections Processing Unit Find the transcript here Sign up here for the monthly AirSpace newsletter AirSpace is created by the Smithsonian's National Air and Space Museum with generous support from Lockheed-Martin