New Delhi: The Bharatiya Antariksh Station (BAS) — India’s much-anticipated indigenous space station — has reached a major milestone. The Indian Space Research Organisation (ISRO) has formally approved the station’s configuration. The five-module design has been finalised, and the project timeline targets full operational status by 2035.
This development marks a definitive step forward in India’s long-term vision for human spaceflight, microgravity research, and its aspirations to establish a lasting presence in low Earth orbit (LEO).
Background of Bharatiya Antariksh Station
The idea of an Indian space station has been a part of the broader ambition of ISRO’s human-spaceflight programme, which has gained momentum especially with Gaganyaan.
On 18 September 2024, the government formally approved the initial module (BAS-1) under the expanded scope of the Gaganyaan programme.
The push for an Indian station stems from a desire for self-reliance in space, capacity for long-duration human presence in orbit, and boosting India’s role in global space research.
Bharatiya Antariksh Station: Earlier Plans and Adjustments
Originally, plans envisaged completion by 2030, but technical delays, including pandemic-related disruptions and the complexity of human-rated technologies, pushed the target to 2035.
The station is designed to operate in LEO at an altitude between 400–450 km.
ISRO has also emphasised modular design — enabling phased deployment and gradual build-up of capabilities.
What’s in the Finalised Configuration
According to the officially approved blueprint, BAS will have the following five distinct modules.
| Module | Purpose / Key Role |
| Base Module (BAS-1) | Core structural module; first to launch. It will house life-support systems, crew quarters as testbed for human habitation |
| Core (Docking) Module | Central node for docking spacecraft; manage logistics and connectivity among modules. |
| Science Module | Dedicated for scientific experiments — microgravity research, materials science, biological studies, etc. |
| Laboratory Module | Advanced lab facilities to facilitate ongoing experiments and research in the space environment. |
| Common Berthing / Working Module (CBM Module) | Multipurpose module for crew work, docking, berthing, perhaps storage and additional systems. |
Other notable technical aspects of Bharatiya Antariksh Station
- Total mass of the station: ~52 tonnes.
- Orbit: Circular, at 400–450 km altitude, inclination ~51.5°.
- Crew capacity: Nominal 3–4 astronauts; short-duration up to 6.
- Docking & berthing capabilities: Modular connection via standard mechanisms; provision for cargo, crew transport, module expansion.
- Life support & human habitat systems onboard: Environmental Control and Life Support System (ECLSS), indigenous docking systems, hatch mechanism — all developed domestically.
Timeline of Bharatiya Antariksh Station
2028: Launch of first module (Base Module, BAS-1) onboard a launcher such as LVM3.
2028–2035: Phased deployment of additional modules (Core, Science, Lab, CBM), integration, docking tests, systems validation.
By 2035: Full operational status of BAS — ready for long-duration missions, sustained human presence, research operations.
During this period, the first module may function initially for automated/robotic operations and as a testbed. Human habitation and regular crewed missions are expected after further validation and module integration.
Major Significance of Bharatiya Antariksh Station
Strategic Independence & Prestige: By building BAS, India joins an exclusive club of nations operating indigenous orbital laboratories — enhancing its prestige and strategic autonomy.
The station underscores India’s evolving ambition from satellite-launched missions to human spaceflight, long-duration orbital presence, and advanced space research.
Platform for Science, Research & Innovation
BAS will offer opportunities for microgravity experiments, biological and material science research, Earth observation, and perhaps even space-based manufacturing.
As announced earlier, agreements between ISRO and national agencies (e.g. biotechnology institutes) indicate a push toward leveraging space-based research for real-world biotech and scientific advancements.
Global Collaboration & Diplomacy: The station’s orbit parameters and docking capabilities are being designed for compatibility — potentially allowing collaborations with international space agencies and astronauts from partner nations.
This can open doors for cross-agency experiments, joint missions, and shared use of orbital infrastructure — boosting India’s soft power and scientific diplomacy.
Future Space Goals — Moon, Mars, Beyond: BAS is a stepping stone toward grander ambitions. With orbital experience and long-duration human habitation capabilities, India strengthens its readiness for future crewed lunar missions, Mars missions, or deep space exploration.
The modular and scalable design means BAS could evolve with technology advances, possibly integrating new modules, labs, or docking points for future spacecraft.
Key Challenges and What Lies Ahead
While the configuration is finalised and the roadmap clear, the journey to 2035 will not be without challenges:
Technical Challenges: Life support for long-duration missions, safe docking and berthing, radiation shielding, micro-meteoroid protection, ECLSS reliability — all need rigorous testing and validation.
Budget & Resource Commitment: Sustained funding, allocation of resources, coordination among various agencies, and continuous political support will be essential over the next decade.
International Collaboration & Standards: To collaborate globally, BAS must meet international safety, docking, and operation standards — requiring strict engineering, regulatory, and diplomatic work.
Human Factors & Crew Safety: Long-term life in microgravity involves physiological, psychological, and safety risks (radiation, isolation, spacewalks). Adequate training, medical protocols, and support systems will be critical.
Despite these challenges, experts consider BAS a realistic and well-conceived plan — reflecting India’s growing maturity in space science and engineering.
Importance of Bharatiya Antariksh Station for India’s Space Mission
The finalisation of BAS’s configuration signals that India’s aspirations in space are no longer limited to satellites or short-term missions. With BAS, India is laying the foundation for a sustained human space presence, frontier-level scientific research, and long-term ambitions like crewed lunar or interplanetary missions.
It represents a paradigm shift — from mission-based accomplishments to building enduring capability and resilience in space. For young scientists, engineers, researchers, students (especially those in STEM), BAS offers a monumental opportunity to contribute to India’s future in space.
Read also: Gaganyaan Parachute Test: ISRO Takes a Giant Leap Towards India’s First Human Spaceflight
