NATIONAL SPACE DAY (Syllabus: GS Paper 3 – Sci and Tech)

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Context: India is commemorating its first-ever National Space Day on August 23, 2024, marking a historic achievement with the successful landing of ISRO's Vikram Lander from Chandrayaan-3 on August 23, 2023.


National Space Day

  • About: ISRO’s Chandrayaan-3 mission successfully landed the Vikram Lander on the moon's surface, making India the fourth country to achieve this and the first to land near the southern pole. The landing site was named 'Shiv Shakti' point, and the date was declared National Space Day.
  • Theme: Touching Lives while Touching the Moon: India's Space Saga."
  • Significance

oThis landmark event signifies India's growing prowess in space exploration, celebrating the importance of space science and technology.

oThe celebrations of National Space Day are a testament to India's remarkable strides in space exploration and its continued efforts to inspire future generations. 

oThe events and initiatives planned for this day highlight the nation's dedication to leveraging space technology for societal benefit and advancing human knowledge.


Chandrayaan 3's Findings a Year Later

  • Uniform Terrain: The terrain around Chandrayaan 3’s landing site is relatively uniform, providing a consistent basis for further analysis.
  • Lunar Crust Formation: The data supports the hypothesis that the Moon’s crust formed in layers, reinforcing the lunar magma ocean (LMO) theory.
  • Topsoil Composition: The topsoil at the lunar south pole contains more minerals than previously expected, suggesting the presence of materials from the lower crust.
  • Molten Material Hypothesis: The findings align with the idea that the Moon’s surface was once covered by a sea of molten material shortly after its formation.
  • Elemental Data from APXS: The Alpha Particle X-ray Spectrometer (APXS) has provided new insights into the elemental composition of the Moon’s surface, aiding in understanding its evolutionary history.



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