In addition to the final assembly of Core Stage-2, which is targeted for delivery ... to work on the development of the first SLS upgrade, called Block 1B. The Block 1 vehicle, using a modified ...

(Photo Caption: SLS Block 1 Crew configuration ... (Photo Caption: The liquid oxygen (LOX) tank for Core Stage-2 stands in Cell A of Building 110 at the Michoud Assembly Facility (MAF) behind ...

"Ideally, NASA should be able to buy heavy lift services to send payloads to the Moon—up to about 45 metric tons to 'trans-lunar injection' which is about the same performance as the SLS Block 2 ...

A key part of the craft is a new booster section, dubbed the Exploration Upper Stage ... SLS and Orion spacecraft including its crew and cargo." This is a high-stakes program. The first three ...