Yes, astronauts have to drink water that used to be pee – but their urine is treated extensively, until it is safer to drink than some tap water on Earth.
Articles on Astronauts
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Space tourism is in an exploration phase – the decisions companies make around how to conduct these experiences now will set the tone moving forward.
A new wave of space travellers has sparked debate over how the term is used.
Blue Origin’s all-female space flight crew, which includes popstar Katy Perry, is set to take off this spring.
Making spacesuits compatible with different spacecraft could protect astronauts during an emergency evacuation.
Figuring out how to make spacecraft more accessible to astronauts with physical disabilities can also make them safer for long-duration missions.
Cells function differently under low gravity conditions. Rather than send lab samples to space, researchers are developing Earth-bound tools to more easily study microgravity’s effects on biology.
Wearing the wrong shoe on Earth can lead to injury. Researchers still need to figure out the physical consequences of spending a long time walking around on the Moon.
Before sending humans to Mars, NASA will first return humans to the Moon’s surface to test its technology and train astronauts.
‘Precision health’ uses technologies and artificial intelligence which can lead to individual health and sports performance improvements.
Traveling to space is riskier than many extreme sports − an increase in private missions could mean more civilians taking that risk.
Nasa’s decision to prioritise the safety of the astronauts, and to work with another commercial partner in finding a solution, is a triumph of wisdom and caution.
The SpaceX-backed mission has no professional astronauts aboard.
Boeing Starliner took the astronauts to the International Space Station – but NASA doesn’t think it’s safe for the return trip. What happens next?
Where do astronauts keep their toiletries? What’s with all the velcro? Here’s what we learned from doing archaeology on the International Space Station.
Having its first citizen go into space would demonstrate Nigeria’s capabilities, build expertise, and bring the benefits of space exploration and development.
From the International Space Station to the twin Mars rovers, scientists and astronauts often form a deep emotional bond with the space objects they work with.
Think plane food tastes bland? It’s even worse 100km up – and hungry astronauts need a solution
The spacecraft’s return has been delayed while experts study helium leaks and thruster problems.
A set of papers published in Nature contain groundbreaking research into how even quick jaunts to space can affect an astronaut’s health.
Top contributors
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Postdoctoral research associate, University of Oxford
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Senior Lecturer in Physics, Nottingham Trent University
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Professor of Aerospace Medicine and Rehabilitation, Northumbria University, Newcastle
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Professor of Planetary and Space Sciences, The Open University
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Associate Professor in Archaeology and Space Studies, Flinders University
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Professor, School of Engineering and Technology, CQUniversity Australia
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Senior Lecturer, Department of Psychological Sciences, Birkbeck, University of London
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Kevin Orrman-Rossiter is a Friend of The Conversation.
Sterrenkenner, History & Philosophy of Science, The University of Melbourne
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Professor of Strategy and Security Studies, Air University
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Professor in Earth and Planetary Science, Western University
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Chercheur affilié à l'Observatoire international sur les impacts sociétaux de l’intelligence artificielle et du numérique (OBVIA), Université Laval
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Lecturer in Astronomy, Nottingham Trent University
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Research Fellow/Reader in Planetary Physics, Lancaster University
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Associate Professor of Sport Science and Human Performance and Strategic Lead for Knowledge Exchange, Faculty of Sport, Health and Social Sciences, Southampton Solent University
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Visiting Researcher at the Centre of Human and Aerospace Physiological Sciences, King's College London