Full Breakdown
NASA and SpaceX Launch 34th Commercial Resupply Mission to the International Space Station
5/8/2026, 11:36:08 AM
34th Commercial Resupply Mission Launches to the ISS
NASA and SpaceX plan a 7:16 p.m. EDT launch on May 12, 2025 of a Falcon 9 from Space Launch Complex 40 at Cape Canaveral Space Force Station, carrying a Dragon cargo spacecraft loaded with roughly 6,500 pounds of science, supplies, and equipment. Dragon will autonomously dock with the Harmony module’s forward port at about 9:50 a.m. UTC on May 14, 2025, delivering the payload to the ISS.
Background & Context
This flight is the 34th SpaceX Commercial Resupply Services (CRS) mission under NASA’s long-term partnership with the private sector. CRS flights provide the logistical backbone that sustains continuous crew presence on the International Space Station and enable a steady flow of research hardware and consumables.
Timeline
May 11, 2025 11 a.m. EDT – Pre-launch media teleconference with Bill Spetch, operations and integration manager, NASA ISS Program, and Dr. Liz Warren, deputy chief scientist, NASA ISS Program.
May 12, 2025 7:16 p.m. EDT – Falcon 9 launch from SLC-40, Cape Canaveral.
May 14, 2025 9:50 a.m. UTC – Dragon docks to Harmony’s forward port.
Mid-June 2025 – Undocking, Earth return, splashdown off California.
Cargo and Experiments (Data & Statistics)
Total cargo mass is about 6,500 pounds. The payload includes a wooden bone scaffold for osteoporosis research, a microgravity-simulation study to compare Earth-based simulators with true microgravity, equipment to monitor red-blood-cell and spleen changes, a charged-particle sensor suite to characterize particles that threaten power grids and satellites, and an albedo instrument for precise Earth-Moon reflected-light measurements.
Official Statements & Responses
NASA said live launch and docking coverage will stream on NASA+, Amazon Prime, and YouTube, with blog updates on the agency’s International Space Station site. The public can register for virtual attendance and receive a digital passport stamp. Media contacts include the NASA Kennedy newsroom (321-867-2468) and the Johnson Space Center public affairs office.
Conflicting Reports & Gaps
One source states the Dragon spacecraft will approach the ISS on August 25, 2025, while the launch and docking schedule places its arrival on May 14, 2025. The discrepancy is not resolved within the provided documents.
Why It Matters
Resupply missions keep the ISS crew supplied with food, water, and critical life-support hardware, while the scientific payloads advance biomedical research, space-environment monitoring, and planetary-science investigations. Validating microgravity simulators and bone-scaffold technologies could improve medical treatments on Earth and enhance crew health on future long-duration missions.
What’s Next
After remaining docked through mid-June, Dragon will depart the ISS, return time-sensitive experiments to Earth, and splash down off California. NASA will continue regular CRS flights to maintain the station’s operational cadence and support ongoing research objectives.
