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The global launch market reached $14.1 billion in 2024 — up 34% since 2021.
| Attribute | ||
|---|---|---|
| Company | Northrop Grumman | Gilmour Space Technologies |
| Country | 🇺🇸 USA | 🇦🇺 Australia |
| Status | Retired | In Development |
| Vehicle class | Medium | Small |
| Propellant | RP-1 / LOX (RD-181 first stage) | Hybrid (Sirius motors, stages 1–2) / liquid (Phoenix engine, stage 3) |
| Reusable | No | No |
| Stages | 2 | 3 |
| First flight | 2013 – 2023 | 2025 |
| Payload to LEO | 8,000 kgas of [1]Antares 230+ configuration; primarily used for ~3,500–3,800 kg Cygnus cargo ↑ Best | 300 kgas of [1] |
| Payload to GTO | — | — |
| Height | 41 mas of [1] ↑ Best | 25 mas of [1] |
| Liftoff mass | 298 tas of [1] ↑ Best | — |
| Success rate | 91.7%as of [2]11/12 successes; Orb-3 (CRS-3) exploded at liftoff Oct 2014 ↑ Best | 0/1as of [1]Maiden flight 2025-07-30 crashed 14 seconds after launch (insufficient thrust), from Bowen Orbital Spaceport, Queensland — Australia's first domestic orbital launch attempt. Preceded by two scrubs (2025-05-15 electrical issue, 2025-05-16 fairing anomaly). A second test flight was slated for early 2026. Block 2 (1,000 kg payload) and Eris Heavy (4,000 kg payload) variants are planned. |
| Total flights | 12as of [2]Final Antares flight was NG-19 (Aug 1, 2023). NG-20+ moved to Falcon 9 due to Antares RD-181 engine supply disruption (Russia sanctions). ↑ Best | 1as of [1] |
| Cost / kg LEO | — | — |
| Summary | Primary launch vehicle for Cygnus ISS cargo missions from 2013–2023. Its Ukrainian-built Zenit-derived first stage and Russian RD-181 engines became untenable after the 2022 invasion of Ukraine. Northrop switched NG-20 onward to Falcon 9 while Antares 330 (with Firefly Miranda engines) is in development. | Australia's first domestically developed orbital launch vehicle attempt, using a hybrid-propellant first and second stage; the maiden flight failed 14 seconds after liftoff in July 2025. |
48 launch vehicles across 10 countries — active, retired, and in development — with primary-source citations from manufacturer user guides and agency press kits. Pure URL state: bookmark or share the link and the comparison reproduces exactly.