Hans Koenigsmann, vice president of Build and Flight Reliability at SpaceX, addresses members of the news media during a prelaunch news conference for SpaceX’s 20th Commercial Resupply Services (CRS-20) mission to the International Space Station at NASA’s Kennedy Space Center in Florida on March 6, 2020. Beside Koenigsmann is Mike McAleenan, launch weather officer with the U.S. Air Force 45th Space Wing. The company’s Falcon 9 rocket and cargo Dragon spacecraft are scheduled to lift off from Cape Canaveral Air Force Station’s Space Launch Complex 40 at 11:50 p.m. EST on March 6, 2020.