Full Breakdown
China’s Long March 7A Rocket Explodes After 85 Seconds, Losing ChinaSat-4B
8/12/2026, 12:37:58 AM
Core Event: Launch Failure on August 10, 2026
On August 10, 2026 a Long March 7A lifted off from Wenchang at 8:02 p.m. Beijing time (12:02 GMT). About 85 seconds into flight the vehicle shattered in a fireball, destroying the ChinaSat-4B communications satellite and falling into the South China Sea. State news agency Xinhua called it a “flight anomaly” and said an investigation was under way.
Background & Context
The 60-metre Long March 7A is a medium-lift vehicle used for high-orbit missions. Its first flight in March 2020 failed; it returned to service in 2021 and has completed more than ten successful launches, the latest on June 29, 2026. The rocket uses YF-100 kerolox engines also found on Long March 5, 6 and 8. China’s space programme, overseen by CNSA and CASC, is pursuing President Xi’s “space dream,” including the upcoming Chang’e-7 lunar mission.
Timeline
- March 2020 – Maiden Long March 7A flight fails.
- 2021 – Vehicle returns to service.
- June 29, 2026 – Successful launch, extending its record.
- August 10, 2026 – ChinaSat-4B launch fails; rocket explodes ~85 seconds after liftoff.
- August 11, 2026 – Authorities confirm an investigation.
- August 24 – Planned Chang’e-7 launch on a Long March 5, pending impact from the failure.
Data & Statistics
- Rocket height: 60 m (197 ft).
- Flight duration before explosion: ? 85 s (well before the scheduled first-stage separation at ~3 min).
- Mission count: 18 Long March 7A flights; 16 successes, 2 failures (2020, 2026).
- Payload: ChinaSat-4B, a high-orbit communications satellite valued at over 1 billion yuan.
- Engines: Four strap-on boosters and a core stage powered by YF-100 engines.
Official Statements & Responses
- CNSA has not issued a separate comment; the investigation was confirmed on August 11, 2026.
- Elon Musk (SpaceX) posted on X that “rockets are insanely hard” and wished a “speedy recovery.”
- Blaine Curcio (Orbital Gateway Consulting) called the accident “not a great development” but said the damage appears limited and unlikely to affect the Chang’e-7 schedule.
- Jonathan McDowell (Durham University) noted video shows the rocket was completely destroyed at low altitude, with no debris reaching orbit.
On-the-Ground Reports
Amateur footage captured a bright flash and fireball 85 seconds after liftoff, followed by grey smoke and falling debris. Social-media posts described the vehicle “exploding into flames” and showed fragments descending toward the sea. Channel NewsAsia posted similar video evidence.
Conflicting Reports & Gaps
- Payload identification: Xinhua names the payload ChinaSat-4B; some foreign analysts label it “unknown” and suggest a possible military communications role.
- Cause of failure: Xinhua cites a “flight anomaly.” Observers speculate a structural failure or premature activation of the flight-termination system, but no cause has been released.
- Impact on other missions: The shared YF-100 engine family raises questions about whether engine-related defects could affect the upcoming Long March 5 launch scheduled for August 24.
What’s Next
Investigators are analyzing telemetry and debris to determine whether the anomaly was isolated to the Long March 7A or indicates a broader component issue. Findings will inform safety reviews for rockets sharing the YF-100 engine family. The Chang’e-7 probe remains on the pad with a target window in the second half of 2026 and a launch deadline of August 24. Stakeholders will monitor the investigation for any schedule adjustments.
