Water-Ice Discovery on the Moon by Chandrayaan-3

• A new study by the Physical Research Laboratory (PRL), Ahmedabad, found that water-ice on the Moon is more accessible than previously thought.
• Based on Chandrayaan-3’s ChaSTE data, water-ice may exist in high-latitude regions beyond polar craters.

About the Discovery

• Instrument Used: ChaSTE (Chandra’s Surface Thermophysical Experiment) on Vikram lander.

Key Findings:

• Sun-facing slopes recorded temperatures up to 82°C (355 K).
• Shaded areas just 1m away were significantly cooler at 59°C (332 K).
• Extreme night-time cooling to -181°C, creating potential conditions for water-ice stability.
• Slopes tilted >14° away from the Sun maintained low temperatures, allowing water-ice migration and storage.

Significance

• Easier Access for space missions compared to rugged polar terrain.
• Supports Lunar Habitation: Water for drinking, air, and fuel production.
• Reduces Earth Dependence for future moon missions.

Future Implications

• Boosts India’s Space Goals & aligns with global lunar exploration efforts (NASA Artemis, China).
• Strengthens ISRO’s role in deep-space colonization & resource utilization.