Articles sur Astronauts

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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.
Astronaut Tracy Caldwell Dyson at the International Space Station. NASA

How women can deal with periods in space

We are only starting to understand the impact of space travel on women's health. But a new study has just made it easier for astronauts to decide whether they want to stop their periods.
The force on a triple jumper’s bones is 15 times their body weight. www.shutterstock.com

What exercise does to your bones

Studying how athletes' bones contort during exercise is helping scientists understand which exercise is best for maintaining healthy bones as we age.

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