ISRO successfully completed docking of two SPADEX satellites (SDX-01 & SDX-02) in the early hours of 16 January, 2025. With the successful docking of satellites - Chaser and Target - India has become the fourth country after the US, Russia and China to accomplish the technological feat. Docking is crucial for the building of international space stations. In this process different modules are sent up separately and then docked together in orbit. This experiment is crucial for ISRO's future missions, such as the Space station and landing an astronaut on the moon.