The Indian Space Research Organisation (ISRO) is set to bring a landmark change in its human spaceflight programme by opening its astronaut cadre to civilians for the first time. This move marks a significant expansion of India’s space ambitions beyond its traditional reliance on military-trained pilots and comes as ISRO advances its Gaganyaan mission programme, aimed at building a long-term human presence in space.
According to officials and committee recommendations, the upcoming second batch of astronaut selection will include 10 candidates, of which four will be civilians with STEM (Science, Technology, Engineering, and Mathematics) backgrounds, while the remaining six will be mission pilots from military aviation, including the Indian Air Force. This is a major shift from the first batch, which consisted entirely of IAF test pilots selected for initial human spaceflight trials.
Move Towards a Diverse and Permanent Astronaut Corps
The inclusion of civilians reflects ISRO’s evolving focus from demonstrating basic human spaceflight capability to building a permanent, diverse, and long-term astronaut cadre. Officials stated that the objective is to support regular space missions, advanced scientific experiments in orbit, and future deep-space exploration projects, including plans for a potential Indian space station.
However, civilian astronauts will not participate in early missions. Reports suggest they are expected to fly only from the fourth Gaganyaan mission onward, after all key systems and safety protocols are fully tested. Until then, experienced military pilots will continue to lead initial missions due to their high-risk operational expertise.
Expanding Mission Frequency and Crew Strength
ISRO is also preparing for a significant increase in mission frequency, with plans for two crewed space missions annually in the future. Astronauts are expected to rotate between missions, with a typical two-year gap between flights, while the complete training-to-flight cycle is estimated at around 4.5 years, highlighting the complexity of human spaceflight operations.
The agency is also considering expanding the astronaut pool beyond the current plan. While the second batch is limited to 10 astronauts, future selections may include a larger share of civilian specialists, especially in science-driven roles. The long-term vision includes building a 40-member astronaut cadre, enabling sustained missions and international collaboration opportunities.
Upgrades in Mission Capability and Training Infrastructure
Alongside expanding personnel, ISRO is working on enhancing mission capabilities. In future missions, the agency plans to increase crew capacity from two astronauts to three per flight, requiring upgrades to the Gaganyaan crew module and associated systems. This enhancement is expected to support more complex scientific and operational objectives in orbit.
Despite these advancements, challenges remain. ISRO is still developing a dedicated astronaut training facility, currently relying on temporary infrastructure. Additionally, key systems such as the Environment Control and Life Support System (ECLSS) are still under development and are critical for sustaining human life in space.
A Historic Step for India’s Space Programme
The decision to include civilians is being seen as a historic milestone for India’s space programme, placing ISRO among a select group of global space agencies that allow non-military professionals to become astronauts. Experts believe this move will significantly broaden opportunities for Indian scientists and engineers while strengthening India’s presence in global space exploration.
Overall, ISRO’s decision represents a transformational shift in India’s human spaceflight journey, moving toward a more inclusive, research-oriented, and long-term exploration framework that supports both scientific advancement and strategic space ambitions.
