Most accurate space clock to launch – and count down to destruction

A network of Earth’s best clocks will be synchronised with the most accurate one ever sent into space. But the device has a short shelf life: it will burn up in the atmosphere at the end of the decade as the ISS deorbits

​A network of Earth’s best clocks will be synchronised with the most accurate one ever sent into space. But the device has a short shelf life: it will burn up in the atmosphere at the end of the decade as the ISS deorbits A network of Earth’s best clocks will be synchronised with the most accurate one ever sent into space. But the device has a short shelf life: it will burn up in the atmosphere at the end of the decade as the ISS deorbits