 "Salyut" flights broke several spaceflight records, including several mission-duration records, and achieved the first ever orbital handover of a space station from one crew to another, and various spacewalk records.The ensuing Soyuz programme was vital for evolving space station technology from a basic, engineering development stage, from single docking port stations to complex, multi-ported, long-term orbital outposts with impressive scientific capabilities, whose technological legacy continues .Experience gained from the "Salyut" stations paved the way for multimodular space stations such as "Mir" and the International Space Station (ISS), with each of those stations possessing a "Salyut"-derived core module at its heart.