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Articles on Radiation belts

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Tim Peake, Yuri Malenchenko and Tim Kopra are about to return to Earth after a six-month stay at the ISS. NASA/Victor Zelentsov

How much radiation damage do astronauts really suffer in space?

In theory, astronauts get the equivalent of a lethal x-ray dose during a six-month stay at the ISS. Here’s why we don’t have to worry too much though.

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