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The global launch market reached $14.1 billion in 2024 — up 34% since 2021.
| Attribute | |||
|---|---|---|---|
| Company | JAXA / IHI Aerospace | Rocket Lab | Northrop Grumman |
| Country | 🇯🇵 Japan | 🇺🇸 USA | 🇺🇸 USA |
| Status | Retired | In Development | Retired |
| Vehicle class | Small | Medium | Medium |
| Propellant | Solid (HTPB — all stages) | CH₄ / LOX | RP-1 / LOX (RD-181 first stage) |
| Reusable | No | Yes | No |
| Stages | 3 | 2 | 2 |
| First flight | 2013 – 2022 | 2026 | 2013 – 2023 |
| Payload to LEO | 590 kgas of [1]500 kg to SSO. Enhanced Epsilon (from E-4) added 700 kg LEO via PBS liquid kick stage. | 13,000 kgas of [1]Expendable; ~8,000 kg reusable with first-stage return ↑ Best | 8,000 kgas of [1]Antares 230+ configuration; primarily used for ~3,500–3,800 kg Cygnus cargo |
| Payload to GTO | — | — | — |
| Height | 26 mas of [1] | ~40 mas of [1] | 41 mas of [1] ↑ Best |
| Liftoff mass | 96 tas of [1] | ~481 tas of [1] ↑ Best | 298 tas of [1] |
| Success rate | 83.3%as of [2]5/6 successes. E-6 (Oct 12, 2022) PBS upper stage failed to ignite, eight satellites lost. Epsilon S (next-generation) ground test anomaly Jan 2023 effectively ended the programme. | — | 91.7%as of [2]11/12 successes; Orb-3 (CRS-3) exploded at liftoff Oct 2014 ↑ Best |
| Total flights | 6as of [2] | — | 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 |
| Cost / kg LEO | — | — | — |
| Summary | JAXA's small solid-fuel rocket derived from the M-V rocket heritage. Designed for highly autonomous operations — launch preparations could be managed by just 8 people. The sixth and final E-6 mission (Oct 2022) failed when the PBS kick stage didn't ignite; a ground explosion during Epsilon S testing (Jan 2023) ended the programme. | Rocket Lab's medium-lift reusable rocket targeting the $100B constellation replenishment market. Uses a 'hungry hippo' fairings design that opens at the top rather than traditional clamshell separation. First flight delayed to Q4 2026 after a Jan 2026 propellant tank test anomaly. | 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. |
28 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.