Sonny Williams

The seven members of the Expedition 71 crew pose together with the two test flight crew members for a team photo at the space station. Front from left, Sonny Williams, Oleg Kononenko, and Butch Wilmore. Second row from left, Alexander Grabenkin, Tracy S. Dyson, and Mike Barratt. In the last row, Nikolai Chub, Janet Epps, and Matthew Dominick. Credit: NASA TV

Helium leaks and engine failures: the big drama of the Starliner docking at the space station

As the Starliner began its approach to the space station, five engines of the reaction control system failed during the flight. The mission teams performed a series of warm-up tests that restarted four of the engines while the crew navigated the