Complex sentence: Kurs was the successor to IGLA system and provides navigation beaconing for Russian space vehicles including Soyuz spacecraft, Progress spacecraft, and provided an automated docking system for all those Russian spacecraft that docked with the Mir space station.
Split into simpler sentences: Kurs was the successor to the IGLA system and today provides navigation beaconing for Russian space vehicles including the Soyuz spacecraft and Progress spacecraft. Kurs provided an automated docking system for all those Russian spacecraft that docked with the Mir space station.