NASA’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft roll back to the Vehicle Assembly Building, Wednesday, Feb. 25, 2026, at NASA’s Kennedy Space Center in Florida. Teams will troubleshoot a helium flow issue experienced on the rocket’s interim cryogenic propulsion stage before rolling the rocket and spacecraft back to Launch Complex 39B for the Artemis II mission around the Moon. Photo Credit: (NASA/John Kraus)