Guangdong researchers build prototype star sensor after developing a way to accurately predict how starlight bends at extreme speeds.

China’s hypersonic weapons can now use the stars for guidance when satellite systems like GPS or BeiDou are jammed or fail, according to a project led by the Guangdong Aerospace Research Academy that passed its final expert review on Monday. According to a report published by the academy on August 10, researchers set out to tackle the challenge of developing a star-based navigation system that would be able to function at the extreme speeds of hypersonic flight – Mach 5 and above. Hypersonic…

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