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Research, tooling, incidents, infrastructure shifts, and production lessons. Kept technical so the page stays useful.
JAXA has published its updated requirements management framework developed during the Martian Moons eXploration (MMX) mission. The framework introduces probabilistic requirement verification for deep space environments where deterministic verification is infeasible.
A 10-year study of on-orbit anomalies and failures across 1,200 satellites identifies that power system failures and attitude control software faults account for 67% of mission-limiting anomalies, with SEU-induced software faults increasing proportionally with altitude.
The eighth integrated flight test of Starship achieved full mission success. The engineering community has been analyzing publicly available data for systems engineering lessons — particularly around the rapid iteration development model and its implications for traditional SE processes.
The European Space Agency documents key lessons from its Digital Twin for Space programme, including model fidelity calibration, on-orbit data integration, and the gap between design-phase models and operational reality that ground teams have to manage.
NASA restored Voyager 1's primary roll thrusters after more than twenty years offline because the backup thrusters are threatened by residue buildup and command opportunities are narrowing during Deep Space Network upgrades. The maneuver is a reminder that deep-space operations often hinge on recovery paths nobody expected to matter this late in a mission.