Members of the launch team for NASA’s Ionospheric Connection Explorer (ICON) gather for a joyous group photo in front of the Northrop Grumman L-1011 Stargazer aircraft carrying the Pegasus XL rocket at the Skid Strip at Florida’s Cape Canaveral Air Force Station, Nov. 10, 2019. Hours later, the rocket containing ICON air-launched from beneath the aircraft off the coast of Daytona Beach. ICON will study the frontier of space - the dynamic zone high in Earth's atmosphere where terrestrial weather from below meets space weather above. The explorer will help determine the physics of Earth's space environment and pave the way for mitigating its effects on our technology, communications systems and society.