Exploration Upper Stage
The Exploration Upper Stage (EUS) is being developed as a large second stage for Block 1B of the Space Launch System (SLS), succeeding Block 1's Interim Cryogenic Propulsion Stage. It will be powered by four RL10-C3 engines burning liquid oxygen and liquid hydrogen to produce a total of 440 kN (99,000 lbf) thrust. As of February 2015, the SLS Block 1B will have a payload capacity, to Low Earth Orbit, of 105 t (103 long tons; 116 short tons). The EUS is expected to first fly on Artemis IV in March 2026.
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2026 in spaceflightAerojet RocketdyneAres VArtemis_2Artemis programComparison of orbital launch systemsCrew Exploration VehicleDual-Use Upper StageDual Use Upper StageDynetics HLSEarth Departure StageEus (disambiguation)J-2XList of Artemis missionsList of rocket stagesMARC-60RL10Saturn_VSpace Launch System
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Exploration Upper Stage
The Exploration Upper Stage (EUS) is being developed as a large second stage for Block 1B of the Space Launch System (SLS), succeeding Block 1's Interim Cryogenic Propulsion Stage. It will be powered by four RL10-C3 engines burning liquid oxygen and liquid hydrogen to produce a total of 440 kN (99,000 lbf) thrust. As of February 2015, the SLS Block 1B will have a payload capacity, to Low Earth Orbit, of 105 t (103 long tons; 116 short tons). The EUS is expected to first fly on Artemis IV in March 2026.
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The Exploration Upper Stage (E ...... y on Artemis IV in March 2026.
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Diagram of the Exploration Upper Stage
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Exploration Upper Stage
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SLS Block 1B
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The Exploration Upper Stage (E ...... y on Artemis IV in March 2026.
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Exploration Upper Stage
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