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ScienceActive · 35h ↳ China's Long March 7A rocket explodes 85 seconds after liftoff

China's Long March 7A rocket explodes 85 seconds after liftoff

State-owned CASC's satellite launch from Hainan failed catastrophically, losing both vehicle and payload, with potential engine concerns.

31 items16 engagement0 comments Google NewsPressBlueskyMastodonHacker NewsReddit
China's Long March 7A rocket explodes 85 seconds after liftoff
arstechnica.com

Conversation activity · last 36 hours peak 9/30m

Peak 9 items in one 30m at Aug 10, 11 AM; 31 items over 36 hours Aug 10, 9:09 AM — 1 item · Press 1Aug 10, 9:39 AM — 4 items · Google News 4Aug 10, 10:09 AM — no itemsAug 10, 10:39 AM — 6 items · Google News 4, Mastodon 1, Press 1Aug 10, 11:09 AM — 1 item · Bluesky 1Aug 10, 11:39 AM — 9 items · Google News 5, Press 3, Bluesky 1Aug 10, 12:09 PM — no itemsAug 10, 12:39 PM — 2 items · Google News 1, Press 1Aug 10, 1:09 PM — no itemsAug 10, 1:39 PM — no itemsAug 10, 2:09 PM — no itemsAug 10, 2:39 PM — no itemsAug 10, 3:09 PM — no itemsAug 10, 3:39 PM — no itemsAug 10, 4:09 PM — no itemsAug 10, 4:39 PM — no itemsAug 10, 5:09 PM — no itemsAug 10, 5:39 PM — no itemsAug 10, 6:09 PM — 1 item · Press 1Aug 10, 6:39 PM — no itemsAug 10, 7:09 PM — no itemsAug 10, 7:39 PM — no itemsAug 10, 8:09 PM — no itemsAug 10, 8:39 PM — no itemsAug 10, 9:09 PM — no itemsAug 10, 9:39 PM — 1 item · Hacker News 1Aug 10, 10:09 PM — no itemsAug 10, 10:39 PM — 1 item · Hacker News 1Aug 10, 11:09 PM — no itemsAug 10, 11:39 PM — no itemsAug 11, 12:09 AM — 1 item · Press 1Aug 11, 12:39 AM — no itemsAug 11, 1:09 AM — no itemsAug 11, 1:39 AM — no itemsAug 11, 2:09 AM — no itemsAug 11, 2:39 AM — no itemsAug 11, 3:09 AM — no itemsAug 11, 3:39 AM — no itemsAug 11, 4:09 AM — no itemsAug 11, 4:39 AM — no itemsAug 11, 5:09 AM — no itemsAug 11, 5:39 AM — no itemsAug 11, 6:09 AM — no itemsAug 11, 6:39 AM — no itemsAug 11, 7:09 AM — no itemsAug 11, 7:39 AM — no itemsAug 11, 8:09 AM — 1 item · Reddit 1Aug 11, 8:39 AM — no itemsAug 11, 9:09 AM — no itemsAug 11, 9:39 AM — no itemsAug 11, 10:09 AM — no itemsAug 11, 10:39 AM — no itemsAug 11, 11:09 AM — no itemsAug 11, 11:39 AM — no itemsAug 11, 12:09 PM — no itemsAug 11, 12:39 PM — no itemsAug 11, 1:09 PM — no itemsAug 11, 1:39 PM — 2 items · Mastodon 1, Press 1Aug 11, 2:09 PM — no itemsAug 11, 2:39 PM — no itemsAug 11, 3:09 PM — 1 item · Mastodon 1Aug 11, 3:39 PM — no itemsAug 11, 4:09 PM — no itemsAug 11, 4:39 PM — no itemsAug 11, 5:09 PM — no itemsAug 11, 5:39 PM — no itemsAug 11, 6:09 PM — no itemsAug 11, 6:39 PM — no itemsAug 11, 7:09 PM — no itemsAug 11, 7:39 PM — no itemsAug 11, 8:09 PM — no itemsAug 11, 8:39 PM — no items 9 items · 11:39 AM
4 PMAug 118 AM4 PMnow · 9:09 PM

Summary, timeline and people extracted by Claude from 31 items across 6 sources · 7h ago. Quotes are verbatim.

On August 10, 2026, a Long March 7A rocket carrying China's ChinaSat 4B (Zhongxing-4B) communications satellite exploded approximately 85 seconds after liftoff from the Wenchang Space Launch Site in Hainan province. The failure occurred during the main stage's initial engine burn, well before the typical first-stage separation at three minutes. This is the second Long March 7A failure since the rocket's 2020 debut; the previous incident involved an engine malfunction post-separation, but today's failure happened much earlier in flight, raising questions about the YF-100 engine and broader implications for China's space program.

  • Long March 7A carrying ChinaSat 4B exploded 85 seconds after liftoff from Wenchang on August 10, destroying rocket and satellite.
  • Failure occurred during main-stage engine burn, much earlier than first-stage separation; second Long March 7A failure since 2020 debut.
  • Reports flag potential YF-100 engine involvement, raising broader concerns for China's space program and upcoming launches.

How it unfolded

  1. Report CASC had not yet issued public statement

    As of Space.com's publication on August 11, the state-owned China Aerospace Science and Technology Corporation had not released an official statement about the incident.

  2. Event Long March 7A rocket explodes shortly after liftoff

    A Long March 7A rocket carrying ChinaSat 4B launched from Wenchang at 8:02 p.m. local time (Aug. 10) and exploded approximately 85 seconds into flight, generating a massive fireball and debris cloud.

  3. Event Total loss of vehicle and payload

    Based on footage of the explosion, the mission resulted in complete loss of the Long March 7A rocket and its ChinaSat 4B satellite payload, which was bound for geostationary transfer orbit.

  4. Event 18th Long March 7A mission; second failure

    This was the 18th Long March 7A mission since the rocket's 2020 debut, which itself ended in explosion. The 2020 failure was traced to an engine malfunction after first-stage separation, but today's failure occurred much earlier.

  5. Report Initial reporting on failure

    News outlets worldwide reported the failure. Ars Technica noted potential broader concerns if the YF-100 engine was involved.

    “If the failure involved the YF-100 engine, there are broader concerns for China's space program.”

    Eric Berger · Mastodon ↗

What people are saying verbatim

“If the failure involved the YF-100 engine, there are broader concerns for China's space program.”

Eric Berger, Ars Technica space reporter · Ars Technica / Mastodon ↗ · Aug 10, 11:05 AM

“Around 85 seconds into the launch, the rocket exploded, generating a massive fireball and a cloud of smoke and debris while still soaring through Earth's atmosphere.”

Space.com, Space news outlet · Space.com ↗ · Aug 10, 9:56 PM

“Based on such views, the mission will almost certainly be deemed a complete failure, with total loss of vehicle and payload.”

Space.com, Space news outlet · Space.com ↗ · Aug 10, 9:56 PM

“China traced that mishap to an engine malfunction that occurred shortly after first-stage separation. This morning's launch, however, didn't get that far.”

Space.com, Space news outlet · Space.com ↗ · Aug 10, 9:56 PM