Boeing is scheduled to launch its first crewed Starliner spacecraft for a two-week-long stay aboard the International Space Station to test the vessel’s systems.

Aboard Starliner’s Crew Flight Test will be Spacecraft Commander Butch Wilmore and Pilot Sunita Williams, both NASA astronauts. They are set to launch atop an Atlas V N22 rocket from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida.

About a day later, the duo is expected to dock with the space station’s Harmony module to briefly join the ISS crew.