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VOL. I · EST. 11.2025 
SatyaDheesh
सत्याधीश
India's Ground Truth Record
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Chinese Academy of Sciences finds metallic iron never before seen in lunar samples

GS3Economy · S&T · Environment · Security· Space technology (ISRO, missions)· Prelims·

Space exploration and planetary geology: a GS3 Science & Technology case study on extraterrestrial minerals.

Why in news

The Chinese Academy of Sciences discovered face-centred cubic γ-Fe, a metallic iron never before seen in lunar samples, within the Chang’e-6 mission samples.

Background

Researchers identified face-centred cubic γ-Fe inside impact glass grains from the South Pole-Aitken Basin. The findings were published in the Proceedings of the National Academy of Sciences.

Facts for Prelims

  • S&Tγ-Fe: A metallic iron form found in lunar samples for the first time.
  • PlaceSouth Pole-Aitken Basin: The lunar region where Chang’e-6 collected samples.
  • FactChang’e-6: China's lunar mission that retrieved the samples containing the metallic iron.

Prelims practice question

In which lunar region did the Chang'e-6 mission collect the samples containing the newly discovered metallic iron?

  1. (a)Mare Tranquillitatis
  2. (b)Aristarchus Planitia
  3. (c)Tycho Crater
  4. (d)South Pole-Aitken Basin
Show answer

Answer: (d) South Pole-Aitken Basin — The note states that the samples containing the metallic iron were collected from the South Pole-Aitken Basin.

For Mains

Q. Discuss how lunar exploration and the study of extraterrestrial minerals contribute to our understanding of planetary formation and material science.

Dimensions to cover in your answer

  • Geological insight: Evidence of extreme impact events and rapid cooling processes on the lunar surface
  • Material science: Potential for discovering unique metallic properties in low-gravity environments

Keywords: Lunar exploration · Material science · Planetary geology · Chang'e-6

Read the full news →Report a mistake in this noteSource: Times of India ↗Also: GS1 · Places in news / mapping

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This note is generated automatically from SatyaDheesh's news feed and mapped to the UPSC CSE syllabus. Check facts against the original report or PIB before using them in an answer.