"Launching radioactive material through the Earth's atmosphere brings safety concerns. You have to have a special license to do that, but it is not insurmountable," says Dr Simeon Barber, planetary science specialist at the Open University.
63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54
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The locking problem
Leading robotics company Boston Dynamics, based in the US, has turned to South Korean firm Hyundai Mobis – predominantly a maker of automotive parts – for a new generation of actuators.