NASA Deputy Administrator Pam Melroy, right, shows NASA Administrator Bill Nelson the white board created by the families of the astronauts of the STS-120 mission, after a tour of the firing rooms in the Launch Control Center (LCC), Wednesday, July 28, 2021, at NASA’s Kennedy Space Center in Florida. Deputy Administrator Melroy served as commander on STS-120 which was her third and last spaceflight. Photo Credit: (NASA/Aubrey Gemignani)