# NASA asked rivals what options they could offer for its ambitious plan of future lunar trips.

*aerospace · news · 2026-04-11 · Fortune*

## Key points

- NASA recently solicited commercial alternatives to the Space Launch System for future lunar missions.
- Jared Isaacman canceled Boeing’s contract for a new SLS upper stage and paused the Gateway project.
- The White House budget proposal seeks commercial replacements for SLS and Orion after 2028.
- Despite cost overruns, SLS remains the only available rocket capable of meeting NASA’s current needs.
- Congressional support, especially from districts with program jobs, has repeatedly saved SLS funding.

**Companies:** Boeing, Lockheed Martin, SpaceX
**Countries:** United States

[Read the full story on Fortune](https://fortune.com/2026/04/11/boeing-space-launch-system-moon-rocket-cost-trump-nasa-spacex-blue-origin/)

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