Compare rockets
Pick up to 4 vehicles to compare specs and flight records side by side. Browse all →
| Specification | Space Launch System Block 1 National Aeronautics and Space Administration × remove | Proton K/DM-2 Khrunichev State Research and Production Space Center × remove |
|---|---|---|
| Flights | 2 | 110 |
| Success rate | 100% | 93.6% |
| Thrust | 39,000 kN | — |
| Height | 98 m | — |
| Diameter | 8.4 m | — |
| Launch mass | 2,628 t | — |
| LEO capacity | 95,000 kg | — |
| GTO capacity | — | — |
| Launch cost | $2,000M | — |
| Reusable | No | No |
| Stages | 2 | — |