Chandrayaan-2 Detects Solar Ejection Effects on Moon

India’s Chandrayaan-2 lunar orbiter has achieved a historic milestone by detecting the effects of the Sun’s Coronal Mass Ejection (CME) on the Moon’s exosphere for the first time. This groundbreaking observation enhances our understanding of solar phenomena and lunar science, making it a significant development in the context of GS Paper 3 on Science and Technology. Last Updated: 2025-10-23

Key Facts About Chandrayaan-2's Discovery

• Chandrayaan-2 detects solar ejection effects on the Moon.
• First observation of Coronal Mass Ejection (CME) impacts on lunar exosphere.
• Utilized CHACE-2 instrument for findings.
• The Moon’s atmosphere is classified as an exosphere.
• Exosphere contains gases like helium, argon, and neon.
• Low density of the exosphere leads to extreme temperature variations.
• Produced through solar radiation and wind interactions.
• Meteorite impacts also contribute to exosphere formation.
• Coronal Mass Ejection involves expulsion of plasma and magnetic fields from the Sun.
• CME is a major driver of space weather.
• This discovery emphasizes Indian space technology capabilities.
• Enhances understanding of lunar and solar phenomena.
• Significant achievement for Indian science and technology.
• Highlights advancements in space exploration.
• Chandrayaan-2 showcases India's contributions to global science.
• Findings are crucial for future lunar exploration.
• Demonstrates the importance of scientific innovation.

Broader Context of Solar Ejections and Lunar Science

The detection of solar ejection effects on the Moon is a significant advancement in understanding the interactions between solar phenomena and celestial bodies. This discovery aligns with India's strategic goals in space exploration, enhancing its position in the global scientific community. With the increasing importance of space weather in satellite operations and communication, understanding CMEs is crucial. As per recent studies, solar activity can impact Earth’s technology and climate, making this research vital for future explorations and international collaborations.

Related Government Schemes/Policies

• Indian National Space Promotion and Authorization Center (IN-SPACe): Facilitates private sector participation in space activities.
• Space Sector Reforms: Aims to enhance India's capabilities in space exploration and technology.

UPSC Relevance

This topic is relevant for GS Paper 3, particularly under the sections covering Science and Technology, as well as Environmental Science. In the Prelims, factual questions could include the significance of Chandrayaan-2 and the implications of CMEs. For the Mains, candidates might explore essay themes related to the importance of space exploration in national development or the role of technology in advancing scientific research.

FAQ Section

What is Chandrayaan-2?

Chandrayaan-2 is India's second lunar exploration mission, launched in 2019, aimed at studying the Moon's surface and exosphere.

Why is the detection of solar ejection effects important?

The detection of Coronal Mass Ejections (CMEs) on the Moon enhances our understanding of solar interactions with celestial bodies, which is crucial for future lunar exploration and space weather forecasting.

What are the key features of the Moon's exosphere?

The Moon's exosphere is characterized by low density, containing gases like helium, argon, and neon, leading to extreme temperature variations and influenced by solar activity.