International Partnership — 2 museum-grade prints that set the mood. IXPE fulfilled a decades-long ambition to measure X-ray polarization from orbit — a parameter that reveals magnetic field orientation and emission mechanisms invisible to imaging or spectroscopy alone. The Crab Nebula first-light result validated pulsar wind nebula models that had relied on indirect inference since the 1960s. The International Space Station represents the most complex international engineering project in history — a permanently occupied microgravity laboratory orbiting at 400 kilometres altitude where research spans fluid physics, materials science, Earth observation, and human physiology. Continuous crew presence since November 2000 has exceeded two decades, spanning Shuttle assembly era through Commercial Crew Dragon and Soyuz rotation.