VEHICLE PROFILE

Space Launch System — Block 1

NASA’s super heavy-lift rocket configuration for launching Orion on Artemis missions.

Block 1

SPECIFICATIONS

HEIGHT

322 ft integrated Block 1 configuration

DIAMETER / WIDTH

27.6 ft core stage diameter

MASS CONTEXT

5.75 million lbs fueled for the Block 1 Artemis I configuration.

PAYLOAD

More than 27 metric tons to the Moon for Block 1, per NASA.

PROPULSION

Four RS-25 core-stage engines plus two five-segment solid rocket boosters; ICPS provides in-space propulsion for Block 1 Artemis missions.

Reference checked

September 1, 2026

Dimensions and capabilities depend on configuration.

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