List of rocket stages explained
This is a list of upper stages used on rockets.
Upper stages
bold denotes active configurations
italics denotes configurations in development
| Name | Country | Flown on | Proposed for | Status | Remarks |
|---|
| Advanced Cryogenic Evolved Stage | | | Vulcan | In development | |
| Agena | | Atlas, Thor, Thorad, Titan IIIB | | Retired | |
| AVUM | ESA/ | Vega | | In service | |
| Gamma-2 | United Kingdom | Black Arrow | | Retired | |
| Blok D |
| N1, Proton, Proton-K | | Retired | |
| Blok DM-03 | | Proton-M | Angara A5 | In service | |
| Blok DM-SL |
| Zenit-3SL | | In service | |
| Briz-KM | | Rokot | Angara 1.2 | In service | |
| Briz-M | | Proton-K, Proton-M, Angara A5 | | In service | |
| Castor 30 | | Antares | | In service | |
| Centaur | | Atlas, Atlas G, Atlas I, Atlas II, Atlas III, Atlas V, Titan IIIE, Titan IV | Vulcan | In service | |
| CTS | | Long March 2C | | In service | |
| Delta Cryogenic Second Stage | | Delta III, Delta IV | Space Launch System Block I (as Interim Cryogenic Propulsion Stage) | In service | |
| Electron Second Stage | New Zealand | Electron | | In service | |
| Exploration Upper Stage | | | Space Launch System | In development | |
| Falcon 9 Second Stage | | Falcon 9, Falcon Heavy | | In service | |
| Fregat | | Soyuz-U, Soyuz-FG, Soyuz-2, Zenit-3F | | In service | |
| Inertial Upper Stage | | Titan 34D, Titan IV, Space Shuttle | | Retired | |
| KVTK | | | Angara A5, Energia | In development | |
| PAM-G | | | Geosynchronous Satellite Launch Vehicle | In development | |
| Payload Assist Module/Star-48B | | Delta 3000, Delta 4000, Delta II, Space Shuttle | Delta 5000 | In service | |
| Salman | | Qased, Qaem-100 | | In Service | |
| Saman-1 | | Simorgh | | In Service | |
| Starship | | | Starship | In development | It is reusable, and is meant to use orbital refueling. |
| Transtage | | Titan IIIA, Titan IIIC, Titan 34D | | Retired | |
| Volga | | Soyuz-2.1a. Soyuz-2-1v | | | |
| Yuanzheng-1 | | Long March 3B, Long March 3C | | In service | |
| Yuanzheng-1A | | Long March 7 | | In service | |
| Yuanzheng-2 | | Long March 5 | | In service | | |
See also
