Video: Orion launch replays

Watch highlights from Orion’s Dec. 5 launch aboard a Delta 4-Heavy rocket as compiled for broadcast on NASA TV.

The core stage of NASA’s first Space Launch System heavy-lift rocket arrived at the Kennedy Space Center on Tuesday evening aboard a specially-built barge, completing a voyage by sea from a test site in Mississippi to begin final preparations for the first flight of NASA’s Artemis Moon program. Ground crews plan to transport the core stage into the Vehicle Assembly Building beginning around 5:30 a.m. EDT (0930 GMT) Thursday to join its two solid rocket boosters.

NASA is taking steps to rein in costs, emphasizing bonds with private sector companies, and signaling it might be open to a future where the agency’s flagship Orion deep space capsule and Space Launch System are no longer necessary to explore deep space, at least in their current forms.