A train is transporting eight booster motor segments for the Space Launch System rocket that will power NASA's Artemis III mission from Utah to Florida's Kennedy Space Center. The segments are being shipped from Northrop Grumman's facility in Corinne, Utah. The train's destination is NASA's Kennedy Space Center, where the mission is being prepared.

Source: https://www.nasa.gov/image-detail/ng-06022026-artemis-iii-booster-segment-shipment-to-ksc-1-31large/