Engineers at NASA's Kennedy Space Center are building giant rocket boosters. These boosters are needed for the next Artemis Moon mission. So far, workers have stacked four of ten segments inside a building called High Bay 3. The solid rocket boosters help launch the powerful SLS rocket off the ground. They separate from the rocket once the flight is underway.
Building and stacking the segments takes careful engineering. Each piece must line up exactly right. NASA says this hardware work is moving faster than earlier mission preparations did. Once complete, the boosters will help send Orion and its crew toward the Moon.
Cape Canaveral, Fla.
Engineers at NASA's Kennedy Space Center are steadily building solid rocket boosters. These boosters will help launch the next Artemis Moon mission. So far, workers have stacked four of the ten required segments. The segments are being assembled inside High Bay 3, a large rocket-assembly building. Each segment must be carefully aligned before the next one is added. That process leaves little room for error.
The boosters work alongside the core stage of NASA's Space Launch System, called SLS. Together, they provide much of the thrust needed to lift the rocket off the pad. The boosters separate from the rocket a couple of minutes into flight. Once the full SLS rocket is ready, it will help send Orion and its crew toward the Moon. NASA officials say hardware progress on this mission is moving faster than it did before the previous Artemis flight.
This booster work supports two upcoming milestones for NASA's Moon program. Artemis II will fly astronauts around the Moon without landing. Artemis III aims to land astronauts on the lunar surface. NASA's administrator has said he feels extremely confident about launching Artemis III in 2027. Even so, the agency continues detailed hardware and software testing. Officials caution that a major spaceflight schedule can shift if new technical issues appear.
Sources: NASA Artemis blog (nasa.gov/blogs/artemis/2026/08/); NASA Moon to Mars (nasa.gov/humans-in-space/artemis/); NASA Artemis blog (nasa.gov/blogs/artemis/2026/08/); Spaceflight Now (spaceflightnow.com/2026/08/14/nasa-administrator-extremely-confident-in-artemis-3-launch-in-2027/)