Chandrayaan-3: Shiv Shakti soil matches lunar meteorite

1. Question 1Answer C

   A 2026 PRL study linked Shiv Shakti soil to which lunar meteorite?

   • AALH 84001
   • BDar al Gani 262
   • CCorrect answer: ALHA 81005
   • DMurchison

   Core Trigger: A PRL study published 5 June 2026 in npj Space Exploration linked Shiv Shakti soil to meteorite ALHA 81005.From Book 1 RATNA, topic 259, point 1

2. Question 2Answer D

   Shiv Shakti soil has less aluminium and more of which elements than typical highlands?

   • ASilicon and calcium
   • BTitanium and sodium
   • CPotassium and phosphorus
   • DCorrect answer: Iron and magnesium

   Key Finding: The soil has less aluminium and more iron and magnesium than typical highlands.From Book 1 RATNA, topic 259, point 2

3. Question 3Answer A

   Who led the Physical Research Laboratory paper on the Shiv Shakti soil?

   • ACorrect answer: Dwijesh Ray
   • BAnil Bhardwaj
   • CS. Somanath
   • DAnnapurni Subramaniam

   Lead Author: Dwijesh Ray of Physical Research Laboratory led the paper; Anil Bhardwaj is a co-author.From Book 1 RATNA, topic 259, point 3

4. Question 4Answer B

   Which Pragyan rover instrument measured elements at Statio Shiv Shakti?

   • AImaging Infrared Spectrometer
   • BCorrect answer: Alpha Particle X-ray Spectrometer
   • CLangmuir probe
   • DSeismometer ILSA

   Instrument: The Pragyan rover's Alpha Particle X-ray Spectrometer measured elements at Statio Shiv Shakti, 69.37° S, 32.32° E.From Book 1 RATNA, topic 259, point 4

5. Question 5Answer C

   The soil's mean Al2O3 content was how many weight per cent?

   • A29.6
   • B22.4
   • CCorrect answer: 26.1
   • D31.2

   Data Point: Mean Al2O3 was 26.1 weight per cent against a highland average of 29.6.From Book 1 RATNA, topic 259, point 5

6. Question 6Answer D

   Deeper crustal material mixed into the soil probably came from which impact basin?

   • AImbrium basin
   • BMare Crisium
   • COrientale basin
   • DCorrect answer: South Pole-Aitken basin

   India Link: Deeper crustal material, probably from the South Pole-Aitken basin impact, mixed into the soil.From Book 1 RATNA, topic 259, point 7

7. Question 7Answer C

   Which is/are correct? (1) LVM3 M4 launched Chandrayaan-3 on 14 July 2023. (2) It launched from Sriharikota's Second Launch Pad.

   • AOnly 1
   • BOnly 2
   • CCorrect answer: Both 1 and 2
   • DNeither 1 nor 2

   Launch Site: LVM3 M4 launched Chandrayaan-3 on 14 July 2023 from Sriharikota's Second Launch Pad.From Book 1 RATNA, topic 259, point 8

8. Question 8Answer A

   On which date did Vikram soft-land, now celebrated as National Space Day?

   • ACorrect answer: 23 August 2023
   • B14 July 2023
   • C15 August 2023
   • D2 September 2023

   Milestone: Vikram soft-landed on 23 August 2023, now celebrated as National Space Day.From Book 1 RATNA, topic 259, point 9

9. Question 9Answer B

   Which body approved the name Statio Shiv Shakti on 19 March 2024?

   • AISRO Space Applications Centre
   • BCorrect answer: IAU nomenclature working group
   • CUN space committee
   • DNASA naming board

   Naming Landmark: The IAU Working Group for Planetary System Nomenclature approved the name Statio Shiv Shakti on 19 March 2024.From Book 1 RATNA, topic 259, point 10

10. Question 10Answer A

    Which is/are correct? (1) The International Astronomical Union was founded in 1919. (2) Statio is Latin for summit.

    • ACorrect answer: Only 1
    • BOnly 2
    • CBoth 1 and 2
    • DNeither 1 nor 2

    Key Term: Statio is Latin for station; the International Astronomical Union, founded 1919, names landing sites.From Book 1 RATNA, topic 259, point 11

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