Embarking from the Vehicle Assembly Building to Launch Pad 39B at NASA's Kennedy Space Center in Florida, the 11 million-pound (5 million kilograms) stack will be transported at a speed of about 1 mph (1.6 km/h along a 4-mile (6.4 kilometers) route — a journey that will take up to 12 hours and be streamed live on NASA's Youtube channel.

On Saturday, Jan. 17 at 7 a.m., NASA will conduct a rollout mission – transporting an 11-million-pound stack four miles from the Vehicle Assembly Building to Launch Pad 39B at the Kennedy Space Station. The journey will take up to 12 hours, NASA said.