SpaceX’s Cargo Dragon has done something no other cargo spacecraft can claim: it docked with the International Space Station for the sixth time. The spacecraft arrived at the Harmony module’s IDA-2 port on 17 May 2026 at 13:37 Moscow time, delivering 2,948 kg of supplies on NASA’s CRS-34 mission, and it will later return to Earth intact instead of burning up on reentry.
That reuse is the real differentiator. Most freight capsules are disposable by design, which keeps them simpler but also makes them one-way delivery vans for the sky. Cargo Dragon, by contrast, carries a heat shield made from the ablative material PICA-X, allowing the capsule to survive atmospheric return and fly again.
What Cargo Dragon delivered to the ISS
Of the total payload, 816 kg was packed into the unpressurized cargo section. That split matters because it shows why Dragon is more versatile than many competing logistics craft: it can haul both internal station supplies and external hardware in the same mission.
- Total cargo delivered: 2,948 kg
- Unpressurized cargo: 816 kg
- Docking port: IDA-2 on Harmony
- Planned stay on station: about a month
Why this cargo ship is different
SpaceX’s advantage here is not subtle. A reusable cargo capsule lowers the cost of repeated ISS deliveries and gives NASA a vehicle that can come home with experiments, hardware, and other return cargo instead of leaving everything to incineration. That is a neat edge in a field where the old model is still, bluntly, throwaway.
The sixth flight of this particular spacecraft also hints at how SpaceX has turned cargo runs into a durability test rather than a one-off stunt. The ISS still depends on a steady stream of visiting vehicles, but fewer of them now are built to survive the trip both ways.
A month on station, then the trip back
Cargo Dragon is expected to remain attached to the station for around a month before heading back to Earth. If the return goes as planned, it will reinforce a simple but important point: in orbital logistics, reusability is no longer an experiment. It is the benchmark everyone else has to answer.