Download SLS Factsheet (PDF) NASA’s SLS (Space Launch System) is the primary crew transportation to the Moon for the agency’s Artemis campaign. SLS Block 1B is a more powerful and versatile upgrade of the Block 1 variant that successfully launched the Artemis I uncrewed test flight to the Moon in November 2022. Scheduled to replace the Block 1 on the Artemis IV crewed lunar landing mission ...
