December 17 , 2025
15 hrs 0 min
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- RAMBHA-LP of ISRO’s Chandrayaan-3 mission detected an active plasma environment in the Moon’s south polar region.
- It is a payload on the Vikram lander.
- RAMBHA-LP stands for Radio Anatomy of Moon Bound Hypersensitive Ionosphere and Atmosphere – Langmuir Probe
- Plasma is the fourth state of matter, consisting of charged particles like ions and free electrons.
- RAMBHA-LP measures electron density and electron temperature near the lunar surface.
- Electron densities recorded were 380–600 particles per cubic centimetre, and electron temperatures were 3,000–8,000 Kelvin.

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