Crew-13 reaches space station in under eight hours, opening months of research

NASA reports the fastest U.S. launch-to-docking trip in the station’s history.

Four astronauts reached the International Space Station on October 1 after a launch-to-docking journey of seven hours and 55 minutes, a speed record for a US spacecraft traveling to the orbiting laboratory, according to NASA.

SpaceX's Dragon docked at the forward port of the Harmony module at 7:05 p.m. Eastern Daylight Time. The crew included NASA's Jessica Watkins and Luke Delaney, Canadian astronaut Joshua Kutryk and Russian cosmonaut Sergey Teteryatnikov.

Entry came later. Following checks and pressure equalization, the hatch opened at 9:19 p.m. EDT and the astronauts joined the seven people already aboard Expedition 75.

The fast arrival starts a mission whose main work will unfold over months. NASA's mission guide describes research in crop production, stem-cell-derived tissues, blood circulation and medical monitoring, alongside maintenance of the station.

Watkins commands the flight after an earlier station mission in 2022. Delaney, a former test and research pilot, is making his first spaceflight. Kutryk and Teteryatnikov are also first-time space travelers, bringing Canadian test-pilot experience and Russian naval-engineering experience respectively to the international crew.

One planned investigation, conducted with the European Space Agency, examines how weightlessness changes blood flow and clotting. Researchers will combine blood sampling with physiological measurements, including ultrasound and other assessments before, during and after flight. Coordinating the agencies' work is intended to reduce repeated blood draws while improving the shared dataset.

Another study uses simulated lunar landings to examine manual piloting after extended time in microgravity. Researchers want to understand how changes in orientation and motion control affect performance, and whether refresher training shortly before landing helps.

NASA also described research into exercise routines, landing forces and eye changes associated with long-duration spaceflight. These are investigations of possible risks and countermeasures, rather than evidence that a particular treatment has already been proven effective.

That gives the station a role beyond the transit record: it provides a setting in which crews can test methods relevant to longer journeys, when medical support and the option to return quickly are more limited. The results will depend on measurements gathered across missions, not the experience of one crew alone.

The immediate operational task is the transition between crews. Crew-12 members are expected to familiarize their replacements with ongoing experiments and station upkeep before returning home. The eight-hour journey delivered the new team; the handover and research program are what turn that arrival into a continuing expedition.