Compare rockets
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| Specification | Antares 120 Orbital Sciences Corporation × remove | Space Shuttle National Aeronautics and Space Administration × remove | Proton K/DM-2 Khrunichev State Research and Production Space Center × remove |
|---|---|---|---|
| Flights | 2 | 135 | 110 |
| Success rate | 100% | 98.5% | 93.6% |
| Thrust | 3,265 kN | 28,200 kN | — |
| Height | 40.5 m | 56.1 m | — |
| Diameter | 3.9 m | 8 m | — |
| Launch mass | 276 t | 2,030 t | — |
| LEO capacity | 4,600 kg | 27,500 kg | — |
| GTO capacity | — | — | — |
| Launch cost | $80M | $450M | — |
| Reusable | No | Yes | No |
| Stages | 2 | 2 | — |