If you would like to see more articles like this please support our coverage of the space program by becoming a Spaceflight Now Member. If everyone who enjoys our website helps fund it, we can expand and improve our coverage further. The 212-foot-long core stage for the Artemis 1 mission rolls into the Vehicle Assembly Building Thursday at NASA’s Kennedy Space Center in Florida. Credit: Stephen Clark / Spaceflight Now A decade in the making, the core stage for NASA’s first Space Launch System heavy-lift rocket rolled into the Vehicle Assembly Building at the Kennedy Space Center Thursday to join up with twin solid rocket boosters and an Orion capsule for an unpiloted test flight around the moon.