DNA has been successfully sequenced in space for the first time.
Nasa astronaut Kate Rubins carried out the test on the International Space Station (ISS) at the weekend.
She was using a compact DNA sequencing device called Minion, which was developed in the UK.
The device, which was sent up to the space station in July, could help astronauts diagnose illness in space and allow them to identify disease-causing microbes on the ISS.
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