High above the Earth, two astronauts spent six and a half hours in the silence of space restoring a thread of connection that most people never think about but that makes human presence in orbit possible. NASA's Anil Menon and ESA's Sophie Adenot installed a replacement antenna on the International Space Station, reestablishing the high-speed data link between the orbiting laboratory and Mission Control in Houston. It is a reminder that the most consequential work is often invisible — the quiet maintenance of systems that hold larger endeavors together.