- April 2021: Artemis I, Uncrewed test flight of Orion on Block 1 of SLS
- January 2023: Artemis II, Crewed flight of Orion around Moon on Block 1 of SLS
- August 2024: Artemis III, Integrated lunar lander launched to Moon on Block 1B of SLS
- October 2024: Artemis IV, Crewed flight of Orion for human Moon landing on Block 1 of SLS
"We are currently in a blackout period because multiple companies have proposed human lunar lander solutions. These selections will be made in the coming weeks.
NASA is still in a blackout period as it seeks to award preliminary contracts for the ascent, descent, and transfer modules of its Human Landing System. Those awards are likely to come sometime in mid-March.
There are four known bidders for lander development contracts: teams led by Boeing, Blue Origin, and Dynetics, as well as a plan from SpaceX. Of those, only Boeing has proposed building a fully integrated lander that would be launched on the Block 1B version of its SLS rocket. However, other bidders would presumably be allowed to propose integrated landers to be launched on the SLS booster.