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"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.
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Израиль нанес удар по Ирану09:28
"Today's data adds to the picture of a generation up against real and complex barriers to finding a good job and improving their living standards.