ISRO conducted the first successful ground test of the solid rocket motor

• On July 3, 2026, the Indian Space Research Organisation (ISRO) successfully completed the first ground test of the solid rocket motor for 'SOLVE' (Sub-Orbital Launch Vehicle for Experiments) at the Satish Dhawan Space Centre in Sriharikota.

• This test is considered a significant milestone in the preparations for the Gaganyaan human spaceflight mission.

• Its primary objective is to evaluate the reliability and safety of the Gaganyaan crew module's parachute-based recovery system, ensuring the safe return of astronauts.

• SOLVE is a specially developed sub-orbital test launch vehicle designed for various recovery and descent tests associated with the Gaganyaan mission.

• The vehicle is capable of carrying the crew module to an altitude of approximately 10 to 17 kilometers.

• Upon reaching the designated altitude, the module separates from the rocket, followed by the phased deployment of 10 parachutes.

• These parachutes control the module's speed and ensure its safe descent into the sea.

• Data obtained from this test will play a crucial role in enhancing the reliability of the safe landing system being developed for the Gaganyaan mission.