The sun sets on Cape Canaveral Air Force Station’s Launch Complex 41 in Florida during a Boeing/United Launch Alliance (ULA) emergency egress system demonstration on June 19, 2018. The emergency egress system features folding seats attached to slide wires. In the unlikely event of an emergency on launch day prior to liftoff, each person on the Crew Access Tower would get his or her own seat and slide more than 1,300 feet to a safe area. The Boeing CST-100 Starliner will launch on a ULA Atlas V rocket, carrying astronauts to the International Space Station