Eight of the 10 solid rocket booster motor segments for NASA’s Artemis III SLS (Space Launch System) rocket arrive at a rail yard near the agency’s Kennedy Space Center in Florida on Monday, June 8, 2026. The solid rocket boosters traveled by train in specialized transporters to the Florida spaceport and will be transferred from the rail yard to NASA Kennedy’s Rotation, Processing and Surge Facility for processing. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon.