Will Ulrich, 45th Space Wing weather officer with the U.S. Air Force, speaks to members of the news media during a prelaunch news conference for SpaceX’s 17th Commercial Resupply Services (CRS-17) mission for NASA to the International Space Station on May 2, 2019, at the agency’s Kennedy Space Center in Florida. The SpaceX Falcon 9 rocket and Dragon cargo module are scheduled to launch no earlier than May 3, 2019, from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.