NASA

What is the measured degradation rate of ISS solar arrays after 20+ years of LEO operation?

Project Dyson collector units require 30-year lifespans. ISS data provides the longest baseline for thin-film and multi-junction PV degradation in the space environment.

What ISRU technology readiness levels have been achieved for oxygen and metal extraction from regolith?

Phase 2 manufacturing expansion relies on in-situ resource utilization. NASA's ISRU programs provide the most advanced TRL data.

What were the key results and lessons learned from the GODU-LH2 zero-boiloff ground demonstration at Kennedy Space Center?

GODU-LH2 demonstrated 390W of cooling at 20K using a Linde LR1620 industrial refrigerator, proving ZBO physics at the scale Project Dyson requires. Data on system efficiency, thermal cycling, and long-duration performance is critical for our cryogenic propellant architecture decision gate.

What ISS microgravity metallurgy experiments have been conducted, and what sample quality and scale has been achieved?

Microgravity metallurgy at industrial scale is rated TRL 2-3 and carries project-ending risk for Project Dyson. Any ISS metal melting, solidification, or containerless processing data is critical for our materials processing viability decision gate.