In episode 45, Liz MacDonald from the NASA’s Goddard Space Flight Center, discusses in her research into STEVE, a previously unrecorded atmospheric phenomenon discovered by citizen scientists in late 2016 that appears as a ribbon of flickering purple and green light in the night. Her article “New science in plain sight: Citizen scientists lead to the discovery of optical structure in the upper atmosphere” was published on March 18, 2018 in Science Advances, and co-authored with multiple professional and citizen scientists.