Daily Mail:

US military tested a hypersonic missile off the west coast – but kept quiet about the project for two weeks for fear of escalating tensions with Russia. The weapon can be pushed to hypersonic speeds greater than Mach 5 using an air-breathing scramjet engine. Tests come as tensions between Russia and U.S. are heightened due to the country’s invasion of Ukraine – where it used one of its own hypersonic missiles. The development of hypersonic missiles has led to an arms race between the US, China and Russia, with China thought to be further ahead…

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