The mission, known as Orbital Flight Test-2 (OFT-2), lifted off from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on a United Launch Alliance Atlas V rocket. OFT-2 was originally supposed to fly in August 2021, but an issue with some valves in Starliner's propulsion system pushed things back more than eight months.
This is Boeing's second time launching Starliner on an uncrewed test flight; the first mission, OFT-1, returned to Earth early after it failed to reach the space station in December 2019. NASA conducted major reviews of the Starliner program and identified a total of 80 corrective actions that Boeing needed to take before Starliner could return to flight.
Starliner docked with the International Space Station about 24 hours after it launched, and returned to Earth in late May with a parachute-assisted landing at White Sands Space Harbor in New Mexico.
Check back here for live updates on the Boeing Starliner OFT-2 mission.