Vulcan Centaur is a two-stage-to-orbit, expendable, heavy-lift launch vehicle created and operated by United Launch Alliance (ULA). It is principally designed for the United States Space Force's National Security Space Launch (NSSL) program, which launches satellites for the Defense Department and U.S. intelligence agencies. It will replace ULA's existing heavy-lift Atlas V and Delta IV Heavy rockets. Vulcan Centaur will also be used for commercial launches, including an order for 38 launches from Kuiper Systems.

Peregrine Lunar Lander flight 01, commonly referred to as Peregrine Mission One, was an unsuccessful American lunar lander mission. The lander, dubbed Peregrine, was built by Astrobotic Technology and carried payloads for the NASA Commercial Lunar Payload Services (CLPS) program. Peregrine Mission One launched on 8 January 2024, at 2:18 am EST, on the maiden flight of the Vulcan Centaur (Vulcan) rocket. The goal was to land the first U.S.-built lunar lander on the Moon since the crewed Apollo Lunar Module on Apollo 17 in 1972.