Starship vs NASA SLS
Two super-heavy-lift programs with opposite philosophies: SLS is a fully expendable, contractor-built system descended from Shuttle hardware; Starship is a privately funded, fully reusable vehicle still in flight testing.
| Metric | SpaceX Starship | NASA SLS |
|---|---|---|
| Payload to LEO | 100+ t (reusable target) | ~95 t (Block 1) |
| Reusability | Designed fully reusable (in development) | Fully expendable |
| Est. cost per launch | Test flights ~$100M; target far lower | ~$2B+ per launch |
| Status (2026) | Flight testing; V3 debuted May 2026 | Operational but very low cadence |
| Booster recovery demonstrated | Yes — first tower catch Oct 2024 | N/A (expendable) |
Takeaway
SLS works today but at roughly $2B per expendable flight; Starship is still maturing and has not yet proven full reusability. If Starship delivers on reuse, the per-launch cost gap will be enormous — though that case is not yet closed.
Frequently asked
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Reviewed Jul 29, 2026ElonFacts.org. (2026). Starship vs NASA SLS. Retrieved from https://elonfacts.org/comparisons/starship-vs-nasa-sls
"Starship vs NASA SLS." ElonFacts.org, Jul 29, 2026, https://elonfacts.org/comparisons/starship-vs-nasa-sls.
@misc{elonfacts-comparisons-starship-vs-nasa-sls, title={Starship vs NASA SLS}, author={{ElonFacts.org}}, year={2026}, url={https://elonfacts.org/comparisons/starship-vs-nasa-sls}}
https://elonfacts.org/comparisons/starship-vs-nasa-sls