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space suit
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gas-tight protective suit for astronauts who are in the vacuum of space
A space suit is a gas-tight protective suit that allows astronauts to survive and work outside their spacecraft in the vacuum of space. It matters because without this specialized equipment, the extreme conditions of space—including the absence of air to breathe and protection from temperature extremes—would make human spaceflight beyond the spacecraft impossible.
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Research
972 papers- Implications of Space Suit Injury Risk for Developing Computational Performance Models.ReviewAerospace medicine and human performance · 2019Stirling L, Arezes P, Anderson ADOI: 10.3357/AMHP.5221.2019
- Space suit bioenergetics: framework and analysis of unsuited and suited activity.ReviewAviation, space, and environmental medicine · 2007Carr CE, Newman DJDOI: 10.3357/asem.1952.2007
- EVA Suit 2000: a joint European/Russian space suit design.Acta astronautica · 1995Moller P, Loewens R, Abramov IP et al.DOI: 10.1016/0094-5765(95)00038-2
- A space suit modification for the COVID-19 era.Annals of the Royal College of Surgeons of England · 2020Carter J, Doorgakant A, Rigby M et al.DOI: 10.1308/rcsann.2020.0197
- Extravehicular activity space suit interoperability.Acta astronautica · 1995Skoog AI, McBarron JW 2nd, Severin GIDOI: 10.1016/0094-5765(95)00092-e
- Space travel-associated motion sickness and its treatment.ReviewBritish journal of clinical pharmacology · 2026Buckey JC, Lan M, Lewis LDDOI: 10.1002/bcp.70056
- Decompression Sickness: Current Recommendations.ReviewUndersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc · 2025Moon RE, Mitchell SJ
- Space suit bioenergetics: cost of transport during walking and running.Aviation, space, and environmental medicine · 2007Carr CE, Newman DJDOI: 10.3357/asem.1953.2007
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Article
Apollo spacesuit worn by astronaut Buzz Aldrin on Apollo 11 Orlan space suit worn by astronaut Michael Fincke outside the International Space Station Feitian space suit being displayed at the National Museum of China
A space suit (or spacesuit) is an environmental suit used for protection from the harsh environment of outer space. It mainly protects from outer space’s vacuum, as space suits are a highly specialized pressure suit, but it also protects against temperature extremes, as well as radiation and micrometeoroids. Basic space suits are worn as a safety precaution inside spacecrafts in case of loss of cabin pressure. For extravehicular activity (EVA), more complex space suits are worn, featuring a portable life support system.