According to SpaceNews, space mission architecture is undergoing a fundamental rethink. For decades, engineers focused on placement—where to position a spacecraft and how to keep it there. But that model is becoming obsolete. Sustained maneuvers, the kind required for modern missions like asteroid deflection, demand something the industry historically underestimated: reliable, efficient propulsion. Ion thrusters like those flown on NASA's DART mission offer promise, but they expose a hard truth: prolonged orbital changes and station-keeping require far more fuel and propulsive capability than earlier designs assumed. The result is pushing the space industry to rethink everything from mission duration to spacecraft architecture itself.

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