The Indian Space Research Organisation (ISRO) has an incredibly busy roadmap for the 2026–2027 timeline. The agency is transitioning from purely scientific exploration to executing flagship human spaceflight milestones and complex deep-space recovery missions.
The major confirmed and highly anticipated missions scheduled for this window span several key areas:
The Gaganyaan Program (Human Spaceflight)
This is ISRO’s highest priority. Before sending astronauts into space, a sequence of critical uncrewed validation flights is scheduled to guarantee safety systems work perfectly under real spaceflight conditions.
Gaganyaan 1 (G1) & Gaganyaan 2 (G2) | Expected: Late 2026
Objective: These are the critical uncrewed orbital test flights utilizing the Human-Rated LVM3 (HLVM3). They will validate the complete end-to-end mission profile, including the orbital module’s performance, automated re-entry systems, and the safe recovery of the crew module from the ocean.
Gaganyaan 3 (G3) | Expected: Late 2026 / Early 2027
Objective: The final uncrewed test flight carrying a humanoid robot, Vyommitra, to monitor flight parameters, vibration levels, and life-support systems inside the capsule before human integration.
Gaganyaan 4 (H1) | Expected: 2027
Objective: India’s first crewed spaceflight. It will carry up to three Indian astronauts (Gaganauts) into a Low Earth Orbit (LEO) of approximately 400 km for a 3-day mission before safely splashing down in Indian waters.
Lunar & Deep Space Exploration
Following the historic success of Chandrayaan-3, ISRO is pushing straight into complex sample-retrieval and interplanetary science.
Chandrayaan-4 (Lunar Sample Return) | Expected: 2027
Objective: This highly ambitious, multi-launch mission aims to land near the lunar South Pole, collect samples of lunar soil and water ice, and return them safely back to Earth. It serves as a foundational step for future crewed lunar landings and involves a complex modular architecture requiring multiple dockings in space.
Shukrayaan-1 (Venus Orbiter Mission) | Target Window: 2026–2027
Objective: An orbiter mission dedicated to studying the atmosphere and surface chemistry of Venus. Given the orbital mechanics required to reach Venus efficiently, ISRO is tracking late 2026 or 2027 as prime launch opportunities to utilize the planetary alignment.
Earth Observation & Technology Demonstrations
ISRO is also maintaining its robust cadence of functional, scientific, and commercial satellite deployments.
| Mission Name | Expected Timeline | Rocket Type | Primary Objective |
| GISAT-1A (EOS-05) | Mid 2026 | GSLV Mk II | A geostationary earth observation satellite designed for real-time, continuous monitoring of the Indian subcontinent to aid in disaster management and rapid hazard assessment. |
| EOS-10 (Oceansat-3A) | Late 2026 | PSLV | Dedicated to oceanographic, meteorological, and land applications. It will work in tandem with existing satellites to provide high-frequency ocean color and sea surface temperature data. |
| TDS-01 (Tech Demonstration) | 2026 | PSLV | Built to validate next-generation space technologies, including an indigenous high-thrust Electric Propulsion System and advanced Quantum Key Distribution. |
| Space MAITRI | 2027 | SSLV | A collaborative commercial and tracking initiative, utilizing India’s Small Satellite Launch Vehicle to deploy and monitor light orbital assets. |
Note on Timelines: Space launch schedules are dynamic. While these windows reflect ISRO’s current target roadmaps approved by the government, individual launch slots can adjust slightly depending on the completion of rigorous ground testing, vehicle integration, and international collaboration timelines.
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