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Only 3 nations can independently sustain human spacewalks in 2026 — the U.S., Russia, and China.
| Attribute | 🇨🇳 China Trust: Agency-primaryⓘ Last verified Active · Last updated 2026-06-08Remove × | ||
|---|---|---|---|
| Agency | 🇷🇺 Soviet Space Program | 🇨🇳 CNSA | 🇺🇸 NASA |
| Country | USSR | China | USA |
| Manufacturer | NPP Zvezda | CASIC Aerospace Life-Support Institute | David Clark Company |
| Type | EVA | EVA | IVA |
| Status | Retired | Active | Retired |
| Program | Salyut 6 / Salyut 7 | CSS Tiangong Space Station | Space Shuttle (STS-64 through STS-135) |
| Era | 1977–1984 | 2021–present | 1994–2011 |
| Weight | 73.5 kg | 120 kg | 15 kg |
| Max EVA Duration | 3 hours | 8 hours ↑ Longest | — |
| Operating Pressure | 5.8 psi pure O₂ | ~5.8 psi O₂ | Full pressure rated to 30 km altitude |
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33 spacesuits across 8 countries — active, retired, cancelled, and in development — with primary-source citations from agency technical documentation. Pure URL state: bookmark or share the link and the comparison reproduces exactly.