Engineers with NASA’s Exploration Ground Systems integrate the aerodynamic nose cone onto the left-hand forward assembly on the twin SLS (Space Launch System) solid rocket boosters for Artemis II inside the Vehicle Assembly Building’s High Bay 3 at NASA’s Kennedy Space Center in Florida on Tuesday, Feb. 18, 2025. Each forward assembly contains an aerodynamic top, a forward skirt housing avionics, and frustum housing motors that allow the boosters to separate from the SLS core stage after launch. The twin solid boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.