What does it take to become an astronaut?

What does it take to become an astronaut?

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Exercise and brain function, hedgehog hearing, and can AI change our minds? – podcast

The Guardian’s science editor, Ian Sample, talks to Madeleine Finlay about three eye-catching science stories from the week, including a study that explores the link between exercise and brain health. Also on the agenda: the discovery that hedgehogs can hear high-frequency ultras ...  Show more

Was Iran really building a nuclear weapon?

Among the many justifications Donald Trump has presented for the US and Israel attacking Iran has been the supposedly imminent threat posed by its nuclear weapons programme. But how close was the country really to developing an atomic weapon? Ian Sample hears from Kelsey Davenpor ...  Show more

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Tim Peake on his journey to becoming an astronaut and science in space
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What's it like living underwater for two weeks? What's the trickiest part of training to be an astronaut? What are the most memorable sights you see from space? Several extreme questions, all of which can be answered by one man: Major Tim Peake.After a childhood packed with outdo ...  Show more

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Imagine going on a work or school trip for eight days, but ending up away from home for nine months. Now, imagine that journey was to space. NASA astronauts Suni Williams and Butch Wilmore’s spacecraft launched in June last year from Cape Canaveral in Florida. They were taking pa ...  Show more