Development of Lunar Exploration in India
India’s quest to land on the Moon started with the Chandrayaan program, a set of missions that have contributed to our knowledge of the Moon.- Chandrayaan-1 (2008): India’s earlier mission to the Moon was the first mission of any country to find water molecules on the lunar surface, and also conducted large-scale chemical, mineralogical and photo-geologic mapping of the Moon’s surface.
- Chandrayaan-2 (2019): This mission included an orbiter, a lander and a rover. The lander, Vikram, crashed upon landing, although the orbiter continued to send back sharp images.
- Chandrayaan-3 (2023): This mission achieved a historic soft landing near the Moon's south pole, making India the first nation to do so in that region. Mober's 25-kg rover Pragyan explored for 12 days, sending remote-sensing data.
- Chandrayaan-4 (Projected for 2027): Chandrayaan-4 is targeted to be a lunar sample-return mission, capturing and returning lunar soil samples to Earth, a major step forward for India's space capabilities.
Chandrayaan-5: Time to Work Together
Following these milestones, Chandrayaan-5 is poised to continue India's exploration of the Moon in partnership with others. "Just three days back, we got the approval for Chandrayaan-5 mission, along with the partnership with Japan," the PTI report quoted ISRO chairman V. Narayanan as saying, "We will be doing it together with Japan.” The key objectives of Chandrayaan-5 are:
- Advanced Rover Missions: The mission will utilise a 250-kg rover, over 10 times heavier than Chandrayaan-3's 25-kg Pragyan rover. The mass increase enables more advanced science instruments and more prolonged duration on the lunar surface.
- Moon Polars Room Analysis: Focussing on permanently shadowed regions that could harbour water ice, the rover will perform detailed mineralogical and geological analyses of the Moon's south pole.
- Technological Development: The mission will test new technologies for future exploration of the Moon, such as enhanced landing techniques and autonomous navigation systems on the rover.
The South Pole: Region of Strategic Importance
The south pole of the Moon has been of great interest for its unique features:
- Water Ice Deposits: Regions in permanent shadow, as in close to or within craters, are believed to contain water ice that would be essential for human missions in the future, both for drinking water and fuel.
- Scientific Insights: This region may offer clues to the early solar system and how that shaped the surface of the Moon.
Partnership Between Japan and India
ISRO is a few steps closer to realising its dream with the collaboration of the Japan Aerospace Exploration Agency, JAXA, in space exploration, which shows how well international cooperation is. Japan will provide the H3 launch vehicle and additional instruments, while India will provide the lander. Both agencies will also jointly develop the 250-kg rover. This allows both countries to undertake more complex missions than they could have done, promoting innovation and enhancing diplomatic relations. Future Prospects and ISRO Journey
Chandrayaan-5 fits into India's larger aspirations of space exploration:
- Human Lunar Missions: ISRO aims to perform moon landings with humans on board by 2040 and plans to utilise the technological accomplishments from the Chandrayaan-5 mission towards achieving this goal.
- Development of Space Station: The idea of setting up the Bharatiya Antariksha Station by 2035 is in progress, which would serve as a basis for long-term space exploration and collaboration with other nations.
- Nurturing Satellite Launch Potential: The new spaceport in Kulasekarapattinam will be used to launch the Small Satellite Launch Vehicle (SSLV), allowing India to have a larger stake in the global satellite launch market.