Audience members listen during a STEM in 30 event where NASA astronaut Serena Auñon-Chancellor spoke to students while onboard the International Space Station (ISS), Wednesday, June 27, 2018 at Smithsonian's National Air and Space Museum in Washington. Serena is part of the Expedition 56/57 crew that launched to the ISS June 6, 2018. Photo Credit: (NASA/Aubrey Gemignani)