This means NASA will have to rely on the Block 1 SLS configuration ... Block 1B specific and a second stabilizer arm located at the upper stage/payload shroud interface (Orion/Payload adapter).

If there are a finite number of SLS flights on NASA’s schedule, it’s difficult to justify the projected $5.7 billion cost of developing the upgraded Block 1B version of the Space Launch System.

The report, released by NASA's internal watchdog on Aug. 8, focuses on the gigantic Space Launch System (SLS) Block 1B and its Exploration Upper Stage (EUS). Block 1B is designed to increase the ...

Boeing, the prime contractor for NASA’s Space Launch System (SLS) Core Stage ... being manufactured and assembled at Michoud. The Block 1B vehicle will combine EUS with the Core Stage and ...

Boeing and NASA have come in for scathing criticism from federal investigators, who examined the next generation of Space Launch System rockets ... work began on Block 1B in 2014, when it ...

For example, for the Artemis IV mission, NASA plans to use the SLS Block 1B configuration, which is 366 feet tall compared to the 322-foot Block 1 configuration being used for the Artemis II mission.