Note4Students
From UPSC perspective, the following things are important :
Prelims level: Chandrayan-3
Mains level: Not Much
Central Idea
- Chandrayaan-3 accomplished India’s historic achievement of soft landing on the Lunar South Pole.
- Its mission success marked by several noteworthy observations since touchdown on August 23.
Chandrayaan-3’s: Key Achievements
- Pragyan rover’s Laser-Induced Breakdown Spectroscopy (LIBS) instrument identified elements like aluminium, sulphur, calcium, iron, and more.
- Vikram lander recorded a ‘moonquake’ and detected an ultra-thin layer of plasma in the lunar atmosphere.
- These findings hint at distinct characteristics of the moon’s atmosphere compared to Earth.
Significance of Observations
- Sulphur discovery carries paramount importance in comprehending the moon’s origin and past surface (explosiveness) conditions.
- The presence of significant sulphur amounts can provide insights into lunar volcanic activity, potentially indicating the presence of subterranean water.
- Sulphur’s presence could offer clues about past lunar life support and constructing structures for human habitation.
Exploring Lunar Water
- Chandrayaan-3’s findings, particularly sulphur and oxygen on the moon’s surface, play a crucial role in narrowing down possible water sources.
- The presence of sulphur and oxygen enhances the prospects of water detection.
- ISRO was actively pursuing information about lunar hydrogen, another potential indicator of water.
Other mission Lunar Discoveries
- China’s Chang’e 5 mission unveiled a new lunar mineral, Changesite-(Y), and identified water in glass beads.
- Chandrayaan-3’s sulphur detection aligns with the quest for similar glass beads.
- NASA previously confirmed lunar water presence in shadowed craters and sunlit regions.
Present status of Ch-3 Mission
- Chandrayaan-3’s core objectives attained; Pragyan rover placed in ‘sleep’ mode.
- The rover’s solar panels will recharge during the next lunar sunrise.
- Plans to reactivate the rover for further observations remain underway.
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