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Isro successfully conducts hot tests of Gaganyaan propulsion system

ISRO has successfully conducted two hot tests of the Gaganyaan Service Module Propulsion System (SMPS) at the space agency's Propulsion Complex in Mahendragiri on July 3. The short-duration tests, lasting 30 seconds and 100 seconds respectively, were aimed at validating the test article configuration, ISRO said in a statement on Wednesday. "The overall performance of the propulsion system during these hot tests was normal as per pre-test predictions. During the 100s test, simultaneous operation of all Reaction Control System (RCS) thrusters in different modes (steady state; pulsed) along with all Liquid Apogee Motor (LAM) engines was also successfully demonstrated. "ISRO's Liquid Propulsion System Centre (LPSC) is leading the technology development activities for the Gaganyaan SMPS. SMPS is a critical system of Gaganyaan Orbital Module and is required during orbital manoeuvring as well as specific abort scenarios," the space agency said. It comprises five Liquid Apogee Motor (LAM)

Updated On : 09 Jul 2025 | 12:48 PM IST

'Privilege to be amongst few': Shukla describes seeing Earth from space

Speaking from orbit, the astronaut shared his experience of living and working in space, offering insights into the physical challenges, the awe of observing Earth from above

Updated On : 08 Jul 2025 | 9:08 AM IST

Shukla acknowledges Isro chief's efforts in ensuring his safe travel to ISS

In a call to V Narayanan, Chairman of Indian Space Research Organisation (ISRO), Shubhanshu Shukla, the Indian Gaganyatri currently aboard the International Space Station (ISS) as part of the Axiom-4 mission, acknowledged the efforts of team ISRO in ensuring his safe travel to the ISS. Shukla had called the ISRO chief on July 6 afternoon, ISRO said. During the call, the chairman expressed his keen interest in Shukla's well-being and inquired about the various scientific experiments and activities being conducted on the ISS. Narayanan, also Secretary of Department of Space, emphasised the significance of documenting all experiments and activities meticulously after Shukla's return to Earth, as this will provide valuable insights and inputs for the development of India's human spaceflight programme, Gaganyaan. According to ISRO, the Gaganyaan programme aims to demonstrate India's capability to launch a crewed spacecraft into low Earth orbit, and the experiences and knowledge gained f