Score:
6/10
Analyze what earned this score 🔥
Topper’s Copy
GS3
Science & Technology
10 marks
How did Chandrayaan-2’s CHACE-2 payload contribute to understanding the Moon’s exosphere and space weather interactions?
Student’s Answer
Evaluation by SuperKalam
Demand of the Question
- CHACE-2's contributions to understanding Moon's exosphere
- its role in understanding space weather interactions
- specific mechanisms/processes studied
- scientific significance of findings
What you wrote:
Chandrayaan-2's CHACE [Chandra's Atmospheric Composition Explorer-2] payload made its first ever observations of the effects of a coronal mass ejection (CME) on the lunar exosphere.
Chandrayaan-2's CHACE [Chandra's Atmospheric Composition Explorer-2] payload made its first ever observations of the effects of a coronal mass ejection (CME) on the lunar exosphere.
Suggestions to improve:
- Could briefly define the lunar exosphere (e.g., "the Moon's thin atmospheric layer consisting of sparse neutral atoms and molecules") and explain the significance of space weather interactions for future lunar missions.
What you wrote:
KEY CONTRIBUTIONS
1] CHACE-2 conducted in-situ mass spectrometric measurements of the moon's exosphere and analyzed neutral particles and mapped their spatial and temporal variations.
2] It detected variations in Argon-40, (noble gas produced by radioactive decay of K-40 in the lunar interior). This detection helped scientists understand how Ar gases released from the lunar surface vary with local time, latitude and geological features.
3] The payload studied how solar radiation, solar wind and micrometeorite impacts affect the exosphere. It provided insights into surface-exosphere coupling, showing how solar activity influences the moon's atmosphere.
4] CHACE-2 as compared with earlier CHACE had better sensitivity and longer operational time allowing continuous observation and more accurate profiling of exospheric dynamics.
KEY CONTRIBUTIONS
1] CHACE-2 conducted in-situ mass spectrometric measurements of the moon's exosphere and analyzed neutral particles and mapped their spatial and temporal variations.
2] It detected variations in Argon-40, (noble gas produced by radioactive decay of K-40 in the lunar interior). This detection helped scientists understand how Ar gases released from the lunar surface vary with local time, latitude and geological features.
3] The payload studied how solar radiation, solar wind and micrometeorite impacts affect the exosphere. It provided insights into surface-exosphere coupling, showing how solar activity influences the moon's atmosphere.
4] CHACE-2 as compared with earlier CHACE had better sensitivity and longer operational time allowing continuous observation and more accurate profiling of exospheric dynamics.
Suggestions to improve:
- Could detail the CME impact findings (e.g., "observed more than tenfold increase in neutral atom density when solar storms struck, confirming theoretical models about solar activity's influence on airless bodies")
- Can add practical implications (e.g., "findings crucial for designing protective measures for lunar habitats against space weather effects")
What you wrote:
CHACE-2 significantly advanced India's lunar atmospheric research by revealing dynamic processes in the Moon's exosphere, thereby aiding future lunar exploration and comparative planetary studies.
CHACE-2 significantly advanced India's lunar atmospheric research by revealing dynamic processes in the Moon's exosphere, thereby aiding future lunar exploration and comparative planetary studies.
Suggestions to improve:
- Could emphasize the paradigm shift (e.g., "transformed our understanding from static to dynamic lunar exosphere, enabling better preparation for sustained human presence on Moon").
Strong technical content with good scientific terminology and specific examples like Argon-40 detection. The answer effectively covers most demands but could better integrate the quantitative space weather findings mentioned in the introduction.
Demand of the Question
- CHACE-2's contributions to understanding Moon's exosphere
- its role in understanding space weather interactions
- specific mechanisms/processes studied
- scientific significance of findings
What you wrote:
Chandrayaan-2's CHACE [Chandra's Atmospheric Composition Explorer-2] payload made its first ever observations of the effects of a coronal mass ejection (CME) on the lunar exosphere.
Chandrayaan-2's CHACE [Chandra's Atmospheric Composition Explorer-2] payload made its first ever observations of the effects of a coronal mass ejection (CME) on the lunar exosphere.
Suggestions to improve:
- Could briefly define the lunar exosphere (e.g., "the Moon's thin atmospheric layer consisting of sparse neutral atoms and molecules") and explain the significance of space weather interactions for future lunar missions.
More Challenges
View All- View Challenge
GS2
Governance
25 Dec, 2025
Artificial Intelligence is increasingly being integrated into India’s judicial ecosystem through the e-Courts project. Explain the role of AI in improving judicial efficiency and access to justice. Also examine the limitations and ethical concerns associated with the use of AI in the judiciary.
- View Challenge
GS2
International Relations
Yesterday
India recently signed a Comprehensive Economic Partnership Agreement (CEPA) with Oman. Examine the key features of the India–Oman CEPA and analyse its strategic and economic significance for India’s West Asia trade policy. Also discuss the challenges associated with the agreement.
- View Challenge
GS2
Indian Geography
23 Dec, 2025
Dense fog episodes are increasingly affecting northern India during winter months. Explain the formation of fog and its major types. Examine the impacts of persistent fog on weather conditions and socio-economic activities in India.
