Astronaut Serena Auñon-Chancellor at Air and Space Museum

Students and Future Engineers "Two for the Crew" winners wave goodbye at the conclusion of a STEM in 30 event, Wednesday, June 27, 2018 at Smithsonian's National Air and Space Museum in Washington. During the event, NASA astronaut Serena Auñon-Chancellor spoke to students while onboard the International Space Station (ISS), during a live downlink. Photo Credit: (NASA/Aubrey Gemignani)