Space Launch System (SLS)

Technology

Last mentioned: Mar 24, 2026

Timeline

  1. Artemis III Landing

    Planned return of humans to the lunar surface.

  2. Artemis III

    Planned mission to land the first woman and person of color on the lunar surface.

  3. Targeted Artemis II Launch

    First crewed mission of the Artemis program (Projected).

  4. Target Launch

    Projected window for the Artemis 2 crewed lunar flyby mission.

  5. Scheduled Launch

    Artemis II set to launch from Kennedy Space Center Launch Complex 39B.

  6. Wet Dress Rehearsal

    Full propellant loading and countdown practice at the pad.

  7. Launch Window Opens

    The earliest possible date for the Artemis mission launch.

  8. Artemis II Launch

    First crewed flight of the SLS and Orion on a lunar flyby mission.

  9. Final Pad Checkouts

    Engineers begin integrated testing of the rocket and ground systems.

  10. Artemis 2 Rollout

    Rocket moves to Launch Pad 39B for final pre-flight testing.

  11. Rollout to Pad 39B

    The SLS rocket leaves the VAB for the launch pad.

  12. Flight Clearance

    NASA officially clears the rocket and spacecraft for crewed flight.

  13. One-Month Setback

    NASA confirms a 30-day delay for the upcoming mission launch window.

  14. Second Fueling Test

    Critical wet dress rehearsal to validate hardware for crewed flight.

  15. VAB Rollback

    NASA initiates return to VAB for critical repairs after pad testing identifies technical issues.

  16. Major Program Realignment

    NASA officially pushes Artemis II and III dates back due to safety and hardware concerns.

  17. Schedule Realignment

    NASA officially delays Artemis II crewed flight to September 2025 citing safety concerns.

  18. Technical Remediation

    Engineers identify and repair heat shield and life-support electronics issues.

  19. Artemis I Success

    Uncrewed test flight of SLS and Orion completes successful lunar orbit and return.

  20. Artemis I Launch

    Successful uncrewed flight of SLS and Orion to lunar orbit.

Stories mentioning Space Launch System (SLS) 7

launches Bullish

NASA Returns Repaired Artemis Rocket to Pad for Early April Launch

NASA has successfully transported its Space Launch System (SLS) rocket back to Launch Pad 39B following critical repairs in the Vehicle Assembly Building. The move sets the stage for a high-stakes lunar mission window opening in early April, marking a pivotal moment for the Artemis program.

2 sources
launches Bearish

NASA Rolls Artemis II Moon Rocket Back to VAB for Critical Repairs

NASA has initiated the rollback of the Artemis II Space Launch System (SLS) from Launch Pad 39B to the Vehicle Assembly Building following the identification of technical issues requiring a controlled environment. This maneuver signals a potential shift in the launch window for the first crewed lunar mission in over half a century.

2 sources
launches Bearish

NASA Artemis Moon Mission Delayed: Launch Pushed Back One Month

NASA has officially delayed its upcoming lunar mission by approximately 30 days, marking the latest in a series of setbacks for the Artemis program. The delay underscores the persistent technical and logistical challenges of returning humans to the lunar surface.

2 sources
launches Neutral

NASA’s Critical Fueling Test Sets the Stage for Artemis Lunar Return

NASA has initiated its second major rocket fueling test for the Artemis program, a pivotal milestone that will dictate the launch window for the next crewed lunar mission. This technical validation is essential for ensuring the integrity of the Space Launch System (SLS) and the safety of the astronauts slated for the historic journey.

2 sources