Articles on International Space Station

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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.
This attractive specimen, collected from a doorknob in New York, loved being in space. Alex Alexiev/UC Davis

Bacteria found to thrive better in space than on Earth

One common terrestrial bacterium has been found to grow in the microgravity of the International Space Station than on Earth, although it remains a mystery why.
Humans didn’t evolve to deal with the unique conditions of space travel. Bluedharma/Flickr

What medicines would we pack for a trip to Mars?

Hollywood may already have done it but when we eventually send real astronauts to Mars, what medicines should we arm them with? And will they work the same way as they do on Earth?
Astronaut Cady Coleman harvests one of our plants on Space Shuttle Columbia. NASA

Taking plants off planet – how do they grow in zero gravity?

Plants on the International Space Station must figure out how to grow in a completely novel environment. Their adaptability hints at how they'll react to changes here on Earth – or in future space outposts.

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