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July current affairs anmol vachan Just 85 pages including 👇 Pib summary Editorial summary Prelims current affairs June current affairs Click Here UPSC & PSC prelims accelerator click here Bpsc Prelims accelerator click here Society shorts notes click here

July current affairs anmol vachan Pib summary Editorial summary Prelims current affairs June current affairs Click Here UPSC & PSC prelims accelerator click here Bpsc Prelims accelerator click here Society shorts notes click here

🔆 Scientists Discover Faster Rotation in the Sun’s Upper Atmosphere 📍 Why in News? ✅ Scientists have discovered that the Sun’s upper atmosphere rotates faster than its visible surface, challenging the predictions of classical physics and improving our understanding of solar activity and space weather 📍 Key Highlights ✅ Study conducted by researchers from Aryabhatta Research Institute of Observational Sciences (ARIES), Udaipur Solar Observatory (USO), Physical Research Laboratory (PRL) and Ahmednagar College ✅ Published in Astronomy & Astrophysics Letters ✅ Used observations from the Nobeyama Radioheliograph (Japan) 📍 Major Findings ✅ The Sun’s atmosphere rotates faster than its visible surface ✅ Rotation speed increases with height above the solar surface ✅ Rotation slows slightly during periods of higher solar activity, indicated by an increase in sunspots ✅ These findings challenge the expectations based on the conservation of angular momentum 📍 How was the Study Conducted? ✅ Scientists used the 2D Image-Correlation Method ✅ Solar images from different days were compared to measure image displacement ✅ The observed shift was used to calculate the rotational velocity of the Sun’s atmosphere 📍 Why is this Important? ✅ Improves understanding of solar dynamics ✅ Helps refine space weather prediction models ✅ Better forecasting can protect satellites, communication systems, navigation networks and power infrastructure on Earth 📍 UPSC Value Addition ✅ ARIES – Autonomous institute under the Department of Science & Technology (DST), located in Nainital, Uttarakhand ✅ Sunspots are temporary dark regions on the Sun caused by intense magnetic activity and are indicators of the solar cycle ✅ Space Weather refers to changing conditions in space caused by solar phenomena that affect Earth and space-based technologies 📍 Mains Question “Discuss the significance of understanding the Sun’s atmospheric dynamics for improving space weather forecasting. How can advances in solar research contribute to safeguarding critical infrastructure on Earth?” (15 Marks, 250 Words) #Geography