SpaceX, NASA scrubs CRS-34 Cargo Mission to Friday Due to unfavorable weather conditions
A SpaceX Cargo Dragon spacecraft, tail number C209, is seen atop a Falcon 9 rocket at Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station. Image: SpaceX
UPDATE — Wednesday, May 13th, 2026:
SpaceX scrubbed the launch attempt at the T-30 Seconds prior to liftoff from Space Launch Complex 40 on the Cape Canaveral Space Force Station in Cape Canaveral, FL.
The company is now targeting:
Launch Date: Friday, May 15th, 2026
Launch Time: 6:05 PM EST
SpaceX quote from X: “Standing down from today’s launch of the CRS-34 mission to the International Space Station due to unfavorable weather conditions at the launch site. Now targeting Friday, May 15 for liftoff".
Florida Spaceflight will continue providing updates as the next launch attempt approaches.
Cape Canaveral, Florida — SpaceX and NASA have delayed the launch of the CRS-34 cargo resupply mission to the International Space Station by 24 hours due to unfavorable weather conditions along Florida’s Space Coast.
The mission was originally scheduled to launch Tuesday evening aboard a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station. However, weather forecasts issued by the 45th Weather Squadron showed only a 35 percent chance of favorable launch conditions, prompting teams to stand down from the attempt.
NASA and SpaceX are now targeting liftoff at 6:50 p.m. EDT on Wednesday, May 13. Forecast models show improving conditions for the backup opportunity, with weather officials predicting a 65 percent chance of acceptable launch weather.
The primary concerns for Tuesday’s attempt included violations of the cumulus cloud rule, anvil cloud rule, and surface electric field constraints — common weather-related launch commit criteria for Florida missions during the spring and summer months.
CRS-34 is SpaceX’s 34th Commercial Resupply Services mission to the International Space Station under NASA’s cargo transportation contract. The flight will deliver approximately 6,500 pounds of scientific investigations, crew provisions, hardware, and station equipment to the orbiting laboratory.
NASA’s SpaceX 34th commercial resupply mission will launch on the company’s Dragon spacecraft on the SpaceX Falcon 9 rocket to deliver research and supplies to the International Space Station
The mission will use Cargo Dragon spacecraft C209 on its sixth trip to the station. The reusable spacecraft previously supported CRS-22, CRS-24, CRS-27, CRS-30, and CRS-32 missions. Launching atop the Dragon will be a Falcon 9 booster making another return-to-launch-site landing attempt at Cape Canaveral following stage separation.
Once in orbit, Dragon is expected to autonomously dock with the space station roughly 38 hours after launch. NASA said the spacecraft is carrying a range of experiments and research payloads designed to support long-duration human spaceflight and scientific research aboard the ISS.
The delay comes amid a busy launch cadence for SpaceX, which continues to support both NASA missions and its own commercial Starlink deployment schedule from Florida and California launch sites. Cargo missions such as CRS-34 remain a critical component of station logistics, ensuring astronauts aboard the ISS receive fresh supplies, replacement hardware, and new scientific investigations.
The Falcon 9 rocket has become the backbone of NASA’s commercial cargo and crew transportation strategy over the past decade. Since the retirement of the Space Shuttle program in 2011, NASA has relied on commercial providers including SpaceX and Northrop Grumman to routinely transport supplies and experiments to the station.
If Wednesday’s launch proceeds on schedule, Dragon will begin another multi-week stay at the ISS before returning to Earth with completed experiments and cargo for splashdown off the Florida coast later this year.