Operating in vacuum requires continuous internal pressure to prevent ebullism. Rigid designs trade mobility for safety, and every joint that resists motion adds metabolic cost to the crew member working inside it — cost that is currently inferred from consumables rather than measured on the astronaut.
Extreme Thermal Flux
Surface temperature swings between direct sunlight and shade within seconds. Thermal control has to dissipate metabolic heat and protect against both extremes at once. Mir EVA records document overcooling during rest in shadow after high workload, captured after the fact as a medical observation.
Radiation & Micrometeoroid Shielding
Beyond the atmosphere, crews face high-energy solar radiation and hyper-velocity debris. Shielding is a mass-constrained materials problem, and cumulative dose is a measurement problem that continues across a career rather than a single EVA.
Platform Capabilities in This Domain
PLATFORM MODULES
CORE
Vyom pressure architecture — life support, thermal regulation, radiation and micrometeoroid protection with sensing embedded in the garment.
PULSE
PULSE-X physiological intelligence — metabolic rate measured on the crew member, inspired CO₂, thermal and cardiovascular state, sealed mission record, live ISS telemetry integration.
PROVE
Human systems validation — vacuum, pressure and thermal-cycling qualification with instrumented surrogates in place of crew.
DEPLOY
Field deployment — HELIOS orbital and stratospheric testbeds, hosted payload interfaces and analog mission campaigns.