Teams with NASA’s Exploration Ground Systems and contractor Jacobs integrate the interim cryogenic propulsion stage (ICPS) for NASA’s Space Launch System (SLS) rocket with the launch vehicle stage adapter (LVSA) atop the massive SLS core stage in the agency’s Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center in Florida on July 5, 2021. Photo credit: NASA/Kim ShiflettThe ICPS is a liquid oxygen and liquid hydrogen-based system that will fire its RL 10 engine to give the Orion spacecraft the big in-space push needed to fly tens of thousands of miles beyond the Moon. Photo credit: NASA/Kim Shiflett
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The Artemis I mission reached another milestone this week inside the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center. On July 5, teams with Exploration Ground Systems and contractor Jacobs stacked the interim cryogenic propulsion stage (ICPS) atop the Space Launch System (SLS) rocket.
The ICPS’s RL-10 engine is housed inside the launch vehicle stage adapter, which will protect the engine during launch. The adapter connects the rocket’s core stage with the ICPS, which was built by Boeing and United Launch Alliance.
The ICPS will fire its RL 10 engine to send the Orion spacecraft toward the Moon. Its European-built service module will provide the power to take the spacecraft on a journey tens of thousands of miles beyond the Moon.
Before attaching the Orion spacecraft to the rocket, teams will conduct a series of tests to assure all the rocket components are properly communicating with each other, the ground systems equipment, and the Launch Control Center.
The ICPS moved to the VAB on June 19, after technicians in the center’s Multi-Payload Processing Facility completed servicing the flight hardware inside.
Launching in 2021, Artemis I will be an uncrewed flight test of the Orion spacecraft and SLS rocket as an integrated system ahead of missions with astronauts. Under Artemis, NASA aims to land the first woman and first person of color on the Moon and establish a long-lasting presence on and around the Moon while preparing for human missions to Mars.
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