China pushes AI satellites into orbit as Wenchang marks 50 launches

On July 29, the launch cameras at China’s Wenchang Space Launch Site captured a milestone: a Chang Zheng 7A lifted the 50th mission from the Hainan facility. Its payload, Tianlian-3-01, is a relay satellite designed to move communications and data between the Tiangong space station and visiting spacecraft, with support for multiple simultaneous links and a fifteen-year design lifespan.

Wenchang’s decade has been busy. Since its first Chang Zheng 7 launch in June 2016, the site has sent up the Tianhe, Wentian and Mengtian space-station modules, ten Tianzhou cargo missions, the Tianwen-1 Mars mission and the two most recent Chang’e lunar missions. The wider spaceport complex on Hainan Island has exceeded 70 launches, including commercial pads operated by the Hainan International Commercial Aerospace Launch Company.

Then came the setback. A CZ-7A launched on August 10 appeared to suffer a structural failure around 83 seconds after liftoff, shortly after passing through maximum dynamic pressure, the point when aerodynamic stress is highest. The flight termination system destroyed the vehicle and its Zhongxing-4B communications payload over the South China Sea. It was the rocket’s second failure in eighteen missions, and Wenchang’s third launch failure overall.

In parallel, China is testing a different kind of payload: computing power. By the start of August, China had launched 53 missions in 2026 from inland sites, Hainan and sea platforms. ADA Space said two satellites launched in May 2025 maintained a laser connection for eight days, while up to 1,000 km apart in Sun-synchronous orbit, with reported uptime of 99.99%. The satellites are demonstrators for ADA Space’s Star Compute platform and Zhejiang Lab’s Three Body Computing constellation.

So what does it change, concretely? If these demonstrations become larger constellations, some data could be processed and exchanged in orbit instead of waiting for every satellite to send it back to Earth. That could give operators a more persistent communications and computing layer above the planet. For now, the evidence remains limited to demonstrator satellites and planned deployments: Zhejiang Lab’s constellation could reach 1,000 satellites, ADA Space’s Star Compute plans 2,800, and a deal with SenseTime targets an initially small constellation by the end of this year. No independent test of those reported figures is cited here.