Axiom Mission 4
Crew Dragon Grace approaching the ISS. | |
| Names | Ax-4 |
|---|---|
| Mission type | Private spaceflight to the ISS |
| Operator | |
| COSPAR ID | 2025-136A |
| SATCAT no. | 64593 |
| Mission duration | 20 days, 2 hours and 59 minutes |
| Spacecraft properties | |
| Spacecraft | Crew Dragon Grace |
| Spacecraft type | Crew Dragon |
| Manufacturer | SpaceX |
| Crew | |
| Crew size | 4 |
| Members | |
| Start of mission | |
| Launch date | June 25, 2025, 06:31:53 UTC (2:31:53 am EDT) |
| Rocket | Falcon 9 Block 5 B1094-2, Flight 495 |
| Launch site | Kennedy, LC‑39A |
| Contractor | SpaceX |
| End of mission | |
| Recovered by | MV Shannon |
| Landing date | July 15, 2025, 09:31:41 UTC (2:31:41 am PDT) |
| Landing site | Pacific Ocean near San Diego (32°36′N 117°42′W / 32.6°N 117.7°W) |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Low Earth orbit |
| Inclination | 51.64° |
| Docking with ISS | |
| Docking port | Harmony zenith |
| Docking date | June 26, 2025, 10:31:47 UTC |
| Undocking date | July 14, 2025, 11:15 UTC |
| Time docked | 18 days, 43 minutes |
| From left to right: Axiom mission patch, Uznański-Wiśniewski's Ignis mission patch, Kapu's Hunor mission patch From left to right: Kapu, Whitson, Shukla, and Uznański-Wiśniewski Axiom Space missions | |
Axiom Mission 4 (Ax‑4) was a private crewed spaceflight to the International Space Station (ISS) operated by Axiom Space in partnership with SpaceX and NASA. The mission launched atop a SpaceX Falcon 9 Block 5 rocket, which placed the Crew Dragon Grace spacecraft into low Earth orbit. Ax-4 was the first mission to fly aboard the Crew Dragon capsule 'Grace' (C213), which is the fifth and final Dragon capsule manufactured.
The launch was originally scheduled for June 11, 2025 from Launch Complex 39A at the Kennedy Space Center, but was scrubbed for a liquid oxygen leak. A separate leak in the ISS's Zvezda module led to an additional two week launch delay. The mission was eventually launched on June 25, 2025 at 06:31:53 UTC (2:31:53 a.m. EDT) for an 18-day stay at the ISS before undocking and splashing down in the Pacific Ocean off the coast of San Diego on July 15, 2025 at 09:31:41 UTC (2:31:41 am PDT).