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The Five-hundred-meter Aperture Spherical radio Telescope (FAST) is a major national science and technology infrastructure project under China's 11th Five-Year Plan. It leverages the natural karst depression in Guizhou as its site to construct the world's largest single-dish radio telescope with extensive sky coverage and high precision. On January 11, 2020, FAST has successfully passed national acceptance and is officially opened for operation.
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FAST's New Discovery Reshapes Understanding of Early Universe

Sep 20, 2026
China's Five-hundred-meter Aperture Spherical radio Telescope (FAST) has detected 156,411 neutral hydrogen sources across nearly half the sky, marking a major breakthrough in radio astronomy. The findings position FAST as the new global reference in hydrogen survey research.
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Equipment
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The 19-beam receiver
Reflector elements
Actuator
The feed cabin
Cable Robot
Supporting towers
Cable-net
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National Astronomical Observatories,CAS

Contact: Li Nan
Phone: +86 10-64877280