theIASHub | 01 Mar, 2025 | 5
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1.India’s first dedicated space-based solar mission, has made a ground-breaking observation by capturing the first-ever image of a solar flare ‘kernel’ in the lower solar atmosphere (photosphere and chromosphere) using its Solar Ultraviolet Imaging Telescope (SUIT) in the Near Ultra-Violet (NUV) band.
oLaunched: September 2, 2023, by ISRO PSLV C-57 rocket.
oOrbit Placement: Successfully placed in a large halo orbit around the first Earth-Sun Lagrange Point (L1) on January 6, 2024.
o L1 Point: Located 1.5 million km from Earth towards the Sun, allowing continuous solar observations without eclipses or occultations.
o SUIT (Solar Ultraviolet Imaging Telescope) –in collaboration with ISRO Centres. Developed by IUCAA
o SoLEXS (Solar Low Energy X-ray Spectrometer) and HEL1OS (High Energy L1 Orbiting X-ray Spectrometer) – Developed by UR Rao Satellite Centre (URSC), Bengaluru.
o These payloads detect and analyze solar flares across NUV, soft X-ray, and hard X-ray wavelengths.
o Captures high-resolution images in 11 different NUV wavebands (200-400 nm).
o Observes the full solar disk or a specific region based on scientific interest.
o Helps study multiple layers of the Sun’s atmosphere, their coupling, and dynamics.
o Works with SoLEXS and HEL1OS, which monitor solar X-ray emissions to detect solar flare activity.
o A sudden, intense burst of solar energy from the Solar atmosphere caused by the Sun’s dynamic magnetic field.
o When the magnetic field lines snap, they release energy as light/radiation and high-energy charged particles.
Meghalaya High Court recently took suo motu public interest litigation to monitor wetland conservation in the State.
Recently, Prime Minister has attended the 25th Anniversary of the Sufi Music Festival 'Jahan-E-Khusrau' at New Delhi.
o Qawwali, devotional music, is an essential part of Sufi tradition.
o Dargahs (shrines of Sufi saints) serve as cultural and spiritual centers.
o It promotes values like peace, tolerance, and universal brotherhood.
o Notable Sufi saints include Khwaja Moinuddin Chishti, Nizamuddin Auliya, and Amir Khusrau.
About Amir Khusrau: Known as ‘Tuti-yi-Hind’ (Parrot of India), a key figure in North India’s syncretic culture.o He contributed to Indian classical music, qawwali, and the development of Hindavi (a precursor to Hindi and Urdu).
BSE Sensex fell more than 1.9% on February 28, marking a continued decline since February 4.
o Includes stocks, American Depositary Receipts (ADRs), bonds, debt instruments, and mutual funds or ETFs investing abroad.
o Part of a country’s capital account and recorded in its Balance of Payments (BOP).
o Highly liquid, but subject to market volatility.
o Small- and mid-cap markets were overvalued, leading to a natural correction.
o Multinational company (MNC) promoters have also exited due to high valuation levels.
o Not solely due to external factors like tariff threats, but also domestic economic conditions.US President has recently announced a new pathway for foreign investors to obtain permanent residency in the United States, termed the “Gold Card”.
o For Individuals: Insurance against economic and political risk & Enhances global mobility and access to favorable jurisdictions.
o For Host Nations: Generates revenue through investment in real estate, bonds, and businesses, and helps countries revive struggling economies (e.g., Saint Kitts & Nevis in 1984, Portugal post-2008 financial crisis).
February 28 is observed as National Science Day in India to commemorate the discovery of the Raman Effect by Sir C.V. Raman in 1928.
o The scattered light contains a portion with a different wavelength and thus a different colour.
o The blue colour of the sky is due to the scattering of sunlight by air molecules.
o Forensic Science: Rapid analysis of illegal drugs without breaking the evidence seal.
o Industrial Chemistry: Monitoring paint drying to understand chemical reactions as it hardens.
o Nuclear Science: Using fiber-optic probes to analyze nuclear waste materials safely.
A cloudburst and heavy rainfall triggered flash floods in Kangra district, Himachal Pradesh, severely affecting Luwai village in Chhota Bhanghal valley.
o In India, flash floods are often linked to cloudbursts (intense rainfall in a short period).
Experts at the Anil Agarwal Dialogue 2025 in Nimli, Rajasthan warned about the deteriorating health of India’s soils and its grave consequences.
o Degraded lands lose natural resilience, making recovery difficult.
o Soil degradation leads to nutrient loss, causing malnutrition.
o Low soil zinc availability → Higher stunting & underweight cases.
o Low soil iron availability → Increased anaemia cases.
o Acidic soil area expected to rise by 40 million hectares.
o Resilience of soil is declining.
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