After years of delays and setbacks, Boeing plans to launch two veteran astronauts to the International Space Station on Monday night aboard its Starliner spacecraft.

After years of delays, Boeing is finally set to launch two NASA astronauts to the International Space Station on its Starliner spacecraft.

The capsule is scheduled to lift off Monday at 10:34 p.m. ET, atop an Atlas V rocket at Florida’s Cape Canaveral Space Force Station. Astronauts Barry “Butch” Wilmore and Sunita Williams will pilot the Starliner on its inaugural crewed flight — a crucial final test before NASA can authorize Boeing to conduct routine flights to and from the space station for the agency.

The stakes are high. This will be Boeing’s first launch with humans aboard its spaceship, and it comes after years of delays, technical setbacks and significant budget overruns. If successful, the flight will enable Boeing to challenge the dominance held by Elon Musk’s SpaceX, which has been ferrying NASA astronauts to and from the orbiting outpost since 2020.