Imagine a telescope so massive it can peer into the deepest corners of the universe. That is exactly what the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) does! 🌌 But even a cosmic giant needs the right hardware to keep things running smoothly. Now, the world's largest single-dish radio telescope is hitting a major milestone by upgrading its critical components with domestically produced technology for the first time.
Here is the tea: FAST is currently replacing six giant steel cables that are absolutely massive. We are talking about a combined length of nearly 4,000 meters, with each single cable weighing over six tonnes! 😱 These cables aren't just for show—they support and control the 30-tonne feed cabin, the "brain" of the telescope that allows it to track stars and galaxies with ultra-precise positioning.
Operating at a staggering height of 140 meters, these cables have a tough job. They endure hundreds of bending motions and pulse loads every single day. To make sure the new domestic versions could handle the pressure, the team at the National Astronomical Observatories of the Chinese Academy of Sciences put them through a brutal fitness test: 62,000 repeated pulley operations and 200,000 pulse fatigue tests. 💪
After successfully passing three rounds of iterative experiments in August 2025, these homegrown cables have finally arrived on-site. The installation process is currently underway and is expected to be wrapped up by late June this year. 🗓️
Why is this such a big deal? Beyond just the engineering flex, this move boosts supply chain security for the Chinese mainland and creates a blueprint for other massive scientific projects. It proves that the tech used to explore the stars can be developed right at home. 🌟✨
Reference(s):
China's FAST telescope achieves domestic replacement of key component
cgtn.com
