Gemini-Pegasus

NASA performed its first spacewalks in Project Gemini. Among several unused spacewalk concepts was an ambitious mission to rendezvous with the Pegasus micrometeorite satellite and use an EVA to retrieve one of its collection panels. Pegasus was a massive satellite built into the upper stage of a Saturn I rocket. Once in orbit, it would deploy two big "wings" covered in micrometeorite collection panels, used to determine if the Apollo crews could safely traverse the higher orbits without suffering catastrophic impacts.