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astronaut

Chemistry

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

A chemical reaction that recycles carbon dioxide into fresh oxygen could provide more sustainable life support for astronauts on the moon or Mars – and as a bonus, it also produces carbon nanotubes

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Space

Five of the most important International Space Station experiments

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Astronaut inside the International Space Station using the combustion rack

Space

Space travel may make muscles age extremely quickly

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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: -

Space

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

Space

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

astronaut

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Kathryn Sullivan

Space

NASA astronaut Kathryn Sullivan on zero G dreams and fixing Hubble

Regulars

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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

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A picture of the Soyuz spacecraft approaching the ISS

Space

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

Astronaut Christina Koch snapped this majestic picture of a Soyuz rocket approaching the ISS yesterday, tweeting that her best friend Jessica Meir was inside

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women on the ISS

Space

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

Space

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

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Astronauts in mock cockpit

Space

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

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Twins Scott and Mark Kelly

Space

What happened when one twin went to space and the other stayed home?

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