Commercial Crew astronauts Suni Williams and Eric Boe practice docking operations for Boeing’s CST-100 Starliner using part-task trainers designed to mimic the controls and behavior of the spacecraft. They are part of a suite of cloud-based and hands-on trainers that Boeing has built to prepare astronauts and mission controllers. The trainers will be shipped to NASA’s Johnson Space Center in Houston this year so astronauts can use them daily to practice numerous situations from normal operations to unlikely emergencies. The Starliner is one of two spacecraft in development in partnership with NASA’s Commercial Crew Program that will enable astronauts to fly to the International Space Station on a new generation of spacecraft made in America and launching from Florida’s Space Coast. Working at Boeing’s St. Louis facility, Boe and astronaut Suni Williams ran through numerous mission phases to assess the simulators before they are shipped to NASA’s Johnson Space Center in Houston later this year. Photo credit: NASA/Dimitri Gerondidakis