SpaceX and NASA are set to send another cargo ship to the International Space Station on Tuesday morning, with liftoff of the Falcon 9 scheduled for 6:33 a.m. EDT from Space Launch Complex 40 at Cape Canaveral Space Force Station. The CRS-35 flight will be the 35th mission SpaceX has flown to the orbiting outpost under NASA’s Commercial Resupply Services contract.
The launch is drawing attention now because this is no ordinary supply run. Cargo Dragon C211 is carrying 6,300 pounds of supplies and hardware, and the trip includes the final pair of ISS Roll-Out Solar Arrays, the last pieces needed for the station’s ongoing power upgrade program. Those arrays will help reinforce an aging power system that has been getting new support in stages over time, with the latest hardware going up as NASA continues to bolster the lab’s supply of electricity for research and station operations.
Bill Spetch described a manifest that mixes maintenance gear with science. He said the flight includes a dose pump for the toilet, pre-treat quality sensors, a robot microcontical tool for station work, and external replacement units and impairments, along with experiments aimed at manufacturing artificial retinas, studying how microgravity affects 3D heart tissue models, examining how glass forms with non-traditional elements, and better understanding the link between inflammation and neurodegenerative diseases.
The mission also carries another piece of station repair work: a clamshell apparatus meant to hold the failed Canadarm2 joint removed during the June 30 spacewalk. That gives the flight a practical edge beyond routine replenishment, since the cargo is helping NASA keep station systems moving while the outpost remains in use for science and maintenance.
There is a short turnaround ahead. Cargo Dragon C211 is scheduled to dock with the zenith port of the Harmony module on Oct. 15 around 11 a.m. EDT, after a northeasterly climb away from the pad, and it is expected to stay attached to the station for about a month. The same port was recently vacated by Crew Dragon Freedom, which brought the four members of NASA’s SpaceX Crew-12 mission back to Earth with an Oct. 8 splashdown.
The flight path leaves little room for drift. Spaceflight Now planned live coverage beginning about an hour before liftoff, and booster B1096 will be making its eighth launch, after previous flights on NASA’s IMAP, CRS-34, NROL-77, NROL-95, GPS-III 9, Kuiper Falcon 01 and Starlink 6-87. For NASA and SpaceX, the question now is not whether the mission fits the routine of station logistics; it is whether CRS-35 gets off the pad on time and delivers the hardware the station needs before the month moves on.
