Long March 7A Failure Cuts Short Military Satellite Launch, Sparks Lunar Mission Questions
China's Long March 7A rocket exploded 85 seconds after launch on August 10, marking the vehicle's second failure and raising questions about the engines shared with the upcoming Chang'e-7 lunar mission.
A Long March 7A rocket exploded approximately 85 seconds after liftoff from the Wenchang Space Launch Site on August 10, destroying its payload, the Zhongxing-4B military communications satellite. The launch vehicle lifted off around 8:00 a.m. Eastern before failing catastrophically well before its scheduled first-stage separation.
This failure marks the second-ever for the Long March 7A variant, following an anomaly during its maiden flight in 2020. It was the rocket’s 18th mission since its debut. The loss of the vehicle and its payload on August 10 also represents China’s fourth orbital launch failure of 2026.
The incident has drawn attention to the potential implications for China’s upcoming lunar mission. The Long March 7A’s first stage and side boosters use YF-100 kerolox engines, which are also used on the Long March 5 rocket. That Long March 5 is scheduled to launch the Chang’e-7 lunar mission on August 24.
The August 10 explosion was the 56th orbital launch attempt by China this year. With four of those missions failing, the success rate for the country’s launch cadence in 2026 has dipped below 93%.
In the immediate aftermath, no public explanation for the failure has been provided. The focus will now shift to the investigation and its findings, which will be critical for assessing any potential impact on the reliability of the YF-100 engine family and the imminent Chang’e-7 launch.