The episode highlights how ISS life support and related systems are being adapted for Orion to enable long-duration, deep-space missions beyond low Earth orbit.

Orion’s suit design is soft and flexible to accommodate spine growth, sized for crew members, with Artemis II providing practical feedback on fit and comfort in flight.

Design challenges include managing mass and volume constraints and translating lessons from ISS, Shuttle, and Space Station to a smaller vehicle with a six-day contingency for suit-depressurization scenarios.

NASA is aiming for a steady exploration cadence, with Artemis III, IV, and V planned in the coming years to build on lessons from Apollo, the Shuttle era, and the ISS, while keeping crew safety and mission cadence at the forefront.

Paul Boehm of Johnson Space Center, who oversees life support, suits, crew systems, and flight crew equipment for Orion, describes Artemis II as a milestone toward returning humans to the Moon.

Cross-program experience and ISS expertise are valuable for accelerating Orion’s development, even as exploration missions differ from space station operations.

Orion’s fire safety strategy employs a smaller, water-based extinguisher to fit mass and volume limits, avoiding CO2 or gaseous extinguishants that could affect the cabin and life-support systems.

Two key hardware examples are a phase change material thermal system using wax for heat absorption and release, and an amine-based CO2 removal system that can be regenerated and vented; both have been demonstrated on ISS and inform Orion’s design.

Orion is advancing with ISS-derived hardware and testbeds, complemented by new development hardware, using the ISS as a testbed for phase change materials and amine CO2 removal to optimize thermal management and air quality in Orion’s smaller cabin.