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The global launch market reached $14.1 billion in 2024 — up 34% since 2021.
| Attribute | |||
|---|---|---|---|
| Company | JAXA / IHI Aerospace | Space One | NASA / Boeing |
| Country | 🇯🇵 Japan | 🇯🇵 Japan | 🇺🇸 USA |
| Status | Retired | In Development | Active |
| Vehicle class | Small | Small | Super Heavy |
| Propellant | Solid (HTPB — all stages) | Solid | LH₂ / LOX (RS-25); solid HTPB (SRBs) |
| Reusable | No | No | No |
| Stages | 3 | 4 | 2 |
| First flight | 2013 – 2022 | 2024 | 2022 |
| 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. | — | 95,000 kgas of [1] ↑ Best |
| Payload to GTO | — | — | 27,000 kgas of [1]Trans-lunar injection (TLI) payload; GTO not a primary design goal ↑ Best |
| Height | 26 mas of [1] | — | 98.1 mas of [1] ↑ Best |
| Liftoff mass | 96 tas of [1] | — | 2,608 tas of [1] ↑ Best |
| 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. | 0/3 — three consecutive failuresas of [1]2024-03-13: disintegrated shortly after liftoff. 2024-12-18: began tumbling during 1st-stage burn, flight terminated. 2026-03-04: flight termination activated ~70 seconds after liftoff. All three launches flew from Spaceport Kii, Wakayama — Japan's first private-sector spaceport. Program grounded as of this research; precise payload/height/mass specs not confirmed from a primary source. | 100%as of [2]2/2: Artemis I uncrewed (Nov 16, 2022) + Artemis II crewed lunar flyby (Apr 1–10, 2026) ↑ Best |
| Total flights | 6as of [2] ↑ Best | 3as of [1] | 2as of [2] |
| Cost / kg LEO | — | — | ~$40,000+/kgas of [3]NASA OIG (2023) estimated $4.1B per Artemis SLS/Orion flight; total program $23B+ development cost ↓ Cheapest |
| 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. | A Japanese commercial solid-fuel small launcher that has failed on all three flight attempts through March 2026, putting its commercial viability in serious question. | NASA's human deep space launch vehicle for the Artemis programme. Uses heritage RS-25 shuttle main engines (4 per flight, expended). Block 1B with Exploration Upper Stage cancelled Feb 2026; Block 1 will fly through Artemis IV at minimum. |
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.