Chinese scientists say they have proved that a hypersonic weapon could use 6G technology for communication and target detection, solving some of the blackout problems that occur at five times the speed of sound or faster. The breakthrough has implications for the effectiveness of weapons and defence systems and could lead to “critical improvement in China’s near-space defence”, according to the team led by Professor Yao Jianquan, one of China’s top laser scientists. Their paper on the experiment was published in the Journal of National University of Defence Technology on Tuesday. What are hypersonic weapons, and why is there a...