Teams from NASA’s Kennedy Space Center in Florida integrate NASA’s Artemis III SLS (Space Launch System) core stage engine section with its boat-tail inside the spaceport’s Vehicle Assembly Building on Wednesday, July 30, 2025. The boat-tail is a fairing-like structure that protects the bottom end of the core stage, while the engine section is one the most complex and intricate parts of the rocket stage that will help power the Artemis missions to the Moon.