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Space

Being in space makes it harder for astronauts to think quickly

The effects of being in space can worsen an astronaut's working memory, processing speed and attention - which could be a problem for future missions

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Chemistry

How to turn most of the CO2 an astronaut exhales into fresh oxygen

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Astronaut inside the International Space Station using the combustion rack

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Five of the most important International Space Station experiments

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The astronaut in an outer space, at the ISS, repairs and makes experiments. Elements of this image were furnished by NASA; Shutterstock ID 1478957909; purchase_order: -; job: -; client: -; other: -

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Space travel may make muscles age extremely quickly

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Astronauts could drink their own urine with water-recycling spacesuit

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Astronauts Robert L. Curbeam Jr. (left) and Christer Fuglesang on the International Space Station

Health

Astronaut medical records reveal the health toll of space travel

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Meet Christina Koch, who will be the first woman to go to the moon

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Meet Christina Koch, who will be the first woman to go to the moon

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Mae Jemison

People in Science

Mae Jemison

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Kathryn Sullivan

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NASA astronaut Kathryn Sullivan on zero G dreams and fixing Hubble

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Astronaut working on the outsdie of the International Space Station

Space

Low gravity in space made some astronauts’ blood flow backwards

Spending time in microgravity can reverse the flow of a person’s blood and lead to clots, as seen in astronauts who spent months on the International Space Station

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Space

Christina Koch snapped this majestic picture of Soyuz 61 from the ISS

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After years of sexism in space we urgently need more female astronauts

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Future moon missions probably won't carry astronauts - here's why

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Apollo 11 space mission: Diabolically hard practice got us to the moon

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