Mike McAleenan, launch weather officer with the U.S. Air Force 45th Weather Squadron, participates in a briefing at NASA’s Kennedy Space Center in Florida on Jan. 17, 2020, prior to launch of SpaceX’s uncrewed In-Flight Abort Test. A SpaceX Falcon 9 rocket topped by the company’s Crew Dragon spacecraft will lift off from Kennedy’s Launch Complex 39A, then begin the launch-abort sequence. The spacecraft will demonstrate its escape capabilities in preparation for crewed flights to the International Space Station as part of the agency’s Commercial Crew Program.