Note4Students
From UPSC perspective, the following things are important :
Prelims level: Magnetic Anomalies of Mars
Why in the News?
A study conducted by the Indian Institute of Geomagnetism (IIG) revealed significant variations in the strength of Mars’ crustal magnetic field between day and night.
Notable facts about Mars:
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Key Findings on Mars’s Magnetic
- Mars’ crustal magnetic field is significantly stronger during the daytime and nearly non-existent at night-time.
- This suggests a diurnal variation in the magnetic field strength on the Martian surface.
- The crustal magnetic field of Mars is primarily located in the southern hemisphere, specifically poleward of 30°S latitude.
- The magnetic fields are scattered within a region between 120° E and 240° E, indicating uneven distribution across the Martian surface.
- The daytime crustal magnetic field plays a crucial role in controlling the ionosphere in Mars’ southern hemisphere.
- This influence impacts communication and navigation systems of future missions.
Data Utilization from MAVEN Satellite:
- The study utilized data from the MAVEN (Mars Atmosphere and Volatile EvolutioN) Satellite, which has been orbiting Mars since 2014.
- MAVEN’s data on electron density and magnetic field were critical in investigating how Mars’ crustal magnetic field affects its plasma environment and ionosphere.
Significance of the Study
- Understanding Mars’ crustal magnetic field is essential for future robotic and manned missions, as it provides natural magnetic shielding against space radiation.
- The insights from the study can help in developing strategies to mitigate the effects of space weather on spacecraft and astronauts.
PYQ:[2016] The Mangalyaan launched by ISRO
Which of the statements given above is/are correct? (a) 1 only |
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