China marked a major milestone in its space program by successfully launching the Shiyan-21 communication technology test satellite on November 21, 2025. The satellite lifted off at 6:55 p.m. Beijing time aboard a Long March-3B rocket from the Xichang Satellite Launch Center in Sichuan Province. The launch went smoothly, and Shiyan-21 reached its intended orbit with precision. This mission highlights China’s growing expertise in rocket launches and satellite operations, as well as its ambition to lead in communication technology innovation.
Shiyan-21 will primarily test advanced satellite communication systems. It aims to improve China’s radio, television, and data transmission capabilities while conducting important technical experiments for future missions. By performing these tests, the satellite will refine technologies vital for both civilian and strategic communication. Moreover, this mission reflects China’s ongoing commitment to improving satellite design, operational efficiency, and performance verification in orbit.
This launch also marks the 609th flight of the Long March rocket series, one of the world’s most reliable and prolific families of rockets. Over the years, the Long March series has supported earth observation, scientific research, and communication and navigation missions. With Shiyan-21, China reinforces its global space position, demonstrating innovation, reliability, and strategic advancement in next-generation satellite technologies.
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