Overview
- A peer‑reviewed study led by India’s Physical Research Laboratory, published Friday, July 3, 2026, compared Pragyan rover APXS data with 66 lunar meteorites and identified ALHA 81005 as the closest chemical match to soil at the Shiv Shakti Statio.
- The landing‑site regolith has notably lower aluminium oxide and higher combined iron‑plus‑magnesium oxide than typical lunar highlands, with ISRO reporting about 26.1% Al2O3 at Shiv Shakti versus roughly 29.6% in average highland terrain and a FeO+MgO total near 14.4%.
- PRL researchers and ISRO emphasize that the match denotes a shared rock type rather than proof the Antarctic meteorite came from the Chandrayaan‑3 site.
- The study interprets the soil as a mixture of materials from multiple crustal depths, with magnesium‑rich fragments that could have been excavated by the South Pole–Aitken basin and mixed into the surface by repeated impacts.
- By tying an on‑site measurement to a named Earth‑recovered meteorite, the work strengthens support for the Lunar Magma Ocean model and offers a practical way to prioritize landing sites and design future sample‑return missions.