A Long March-4C rocket carrying the satellite Shiyan-23 blasts off from the Jiuquan Satellite Launch Center in northwest China, May 12, 2024.
A Long March-4C rocket carrying the satellite Shiyan-23 blasts off from the Jiuquan Satellite Launch Center in northwest China, May 12, 2024. On June 30, Chinese private space firm Tianbing Aerospace Technology said its Tianlong-3 rocket accidentally launched during an engine test.
  • Chinese space firm Tianbing Aerospace Technology said it accidentally launched a rocket it was testing.
  • The Tianlong-3 is designed as a rival to SpaceX's Falcon 9, with a similar takeoff mass and reflight.
  • But a stationary engine test on Sunday saw the rocket lift off and crash into a mountain.

A Chinese space firm said on Sunday that it accidentally launched its Tianlong-3 rocket during a test, causing the vehicle to lift off and crash into a nearby mountainside.