The mobile launcher with NASA's SLS rocket and Orion spacecraft rolls out of the Vehicle Assembly Building's High Bay 3 to Launch Complex 39B on Tuesday, Aug. 16, 2022, at NASA's Kennedy Space Center in Florida.
“I worked over 50 Space Shuttle launches,” Boeing SLS program manager John Shannon told CNN by phone.
Though more than 1,000 companies were involved with designing and building SLS, Boeing’s work involved the largest and most expensive portion of the rocket.
The SLS rocket ended up flying its first launch more than six years later than originally intended.
All of the “major components” for a third SLS rocket are also completed, Shannon added.