![NASA completes Exploration Upper Stage CDR, focuses new office on SLS Block 1B development - NASASpaceFlight.com NASA completes Exploration Upper Stage CDR, focuses new office on SLS Block 1B development - NASASpaceFlight.com](https://www.nasaspaceflight.com/wp-content/uploads/2020/04/Jupiter_Bound_web.50pct.jpg)
NASA completes Exploration Upper Stage CDR, focuses new office on SLS Block 1B development - NASASpaceFlight.com
![SLS Block 1 will be first variant to launch, with Block 1B and Block 2... | Download Scientific Diagram SLS Block 1 will be first variant to launch, with Block 1B and Block 2... | Download Scientific Diagram](https://www.researchgate.net/publication/343639203/figure/fig2/AS:924150063439873@1597345953148/SLS-Block-1-will-be-first-variant-to-launch-with-Block-1B-and-Block-2-providing-more.jpg)
SLS Block 1 will be first variant to launch, with Block 1B and Block 2... | Download Scientific Diagram
![SLS Block 1 will be first variant to launch, with Block 1B and Block 2... | Download Scientific Diagram SLS Block 1 will be first variant to launch, with Block 1B and Block 2... | Download Scientific Diagram](https://www.researchgate.net/profile/David-Hitt/publication/343639203/figure/fig2/AS:924150063439873@1597345953148/SLS-Block-1-will-be-first-variant-to-launch-with-Block-1B-and-Block-2-providing-more_Q640.jpg)
SLS Block 1 will be first variant to launch, with Block 1B and Block 2... | Download Scientific Diagram
![SLS Block 1, Block 1B, and Block 2B configurations. Note that there is... | Download Scientific Diagram SLS Block 1, Block 1B, and Block 2B configurations. Note that there is... | Download Scientific Diagram](https://www.researchgate.net/publication/332336592/figure/fig2/AS:746299469078528@1554943067830/SLS-Block-1-Block-1B-and-Block-2B-configurations-Note-that-there-is-a-high-level-of.jpg)