🔆 CHaracterising ExOPlanet Satellite (CHEOPS)

📍 Why in News?
✅ European Space Agency’s CHEOPS has discovered a four-planet system around the red dwarf star LHS 1903.
✅ The outermost planet is small and rocky, challenging existing theories that rocky planets form close to stars while gaseous planets form farther away.

📍 About CHEOPS

✅ Launched: 2019
✅ Mission of the European Space Agency (ESA)

🎯 Objectives

✅ Study the structure and composition of exoplanets
✅ Focus on planets in the size range of Super-Earths to Neptunes
✅ Target planets orbiting bright stars with revolution periods below 50 days

🔎 Key Focus

✅ Observes bright, nearby stars already known to host exoplanets
✅ Special emphasis on Earth- to Neptune-sized planets

📌 Helps refine understanding of planet formation theories and planetary system architecture.

#GS3
#prelims
#science_technology
#science_and_technology

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🔆 CURRENT AFFAIRS – 21 FEB 2026

🔆 BANKING & FINANCE

📍 Forex Reserves Hit All-Time High
✅ Forex reserves: $725.727 billion
✅ Weekly rise: $8.663 billion
📍 Components
✅ Foreign Currency Assets (largest share)
✅ Gold Reserves
✅ SDRs
✅ IMF Reserve Position

🔆 INTERNATIONAL

📍 US Launches $200M Edge AI Package
✅ Target: Indo-Pacific
✅ Aim: Secure AI-enabled smartphones ecosystem
✅ Edge AI: AI processing on devices (low latency, better privacy)

📍 India Joins Trump’s Gaza Peace Board (Observer)
✅ Focus: Gaza reconstruction & stabilisation
✅ India represented by Deputy Chief of Mission

📍 India Joins Pax Silica (US-led Initiative)
✅ Focus: Secure semiconductor & AI supply chains
✅ India’s strength: 2nm chip design capability & skilled workforce

📍 IEA – State of Energy Innovation 2026
✅ Innovation driven by geopolitics & supply chain security
✅ “Valley of Death” in scaling energy tech
📍 About IEA
✅ HQ: Paris
✅ Founded: 1974
✅ India: Associate member

🔆 NATIONAL

📍 MoP Sets Panels for PFC–REC Merger
✅ High-Level Committee formed
✅ Aim: Monitor & align merger process

📍 Reliance Announces ₹10 Trillion AI Investment
✅ Timeline: 7 years
✅ Focus: Sovereign AI compute infra
📍 Jamnagar AI Data Centre
✅ 120 MW by 2026
✅ Long-term gigawatt scale
➡ Ensures national data security

📍 New Delhi Frontier AI Impact Commitments
✅ Inclusive, multilingual & responsible AI
📍 3 Pillars
✅ Democratisation
✅ Population-scale deployment
✅ AI Sovereignty

📍 Bio-AI Mulankur Hubs
✅ AI + Genomics + Synthetic Biology
✅ Under DBT & BIRAC

📍 Bharat GI Initiative
✅ Launched by DPIIT
✅ Promotes India’s GI products globally

📍 Eight Core Industries
✅ Growth (Jan 2026): 4% YoY
📍 Base Year: 2011–12
📍 Covers: Coal, Crude Oil, Natural Gas, Refinery, Fertilisers, Steel, Cement, Electricity

📍 PLI Scheme Update
✅ Total Outlay: ₹1.91 lakh crore
✅ Investment: ₹2.16 lakh crore+
✅ Employment: 14.39 lakh+

📍 NITI Aayog Report – Apprenticeship Ecosystem
✅ Strengthening skilling & employability
✅ Aligning industry needs

📍 Cash Toll Payments to End (1 April 2026)
✅ Only FASTag & UPI
✅ FASTag penetration: 98%+

🔆 MoUs

📍 India–Israel Defence MoU
✅ Tech collaboration & co-development

📍 Tata–OpenAI AI Data Centre
✅ 100 MW initial
✅ Scalable to 1 GW
✅ Investment: $7 billion

🔆 STATES

📍 Mizoram
✅ CM Lalduhoma inaugurates Lengtekai Bridge
✅ Load capacity: 385 MT
📍 Foundation Day: 20 Feb 1987

📍 Assam
✅ ‘PMS Portal’ launched for venture schools
📍 CM: Himanta Biswa Sarma

🔆 IMPORTANT DAYS

📍 World Day of Social Justice – 20 Feb 2026
✅ Theme: Renewed Commitment to Social Development and Social Justice

📍 Arunachal Pradesh & Mizoram Foundation Day
✅ 20 February

🔆 SCIENCE & TECHNOLOGY

📍 GalaxEye’s Mission Drishti
✅ AI-powered OptoSAR satellite
✅ Real-time in-space data processing
✅ Uses NVIDIA Jetson Orin module

🔆 SPORTS

📍 Pankaj Advani
✅ Wins inaugural Liber Win Champions Cup 2026

📍 IPC Lifts Ban on Russia & Belarus
✅ Can compete under national flags at Milano-Cortina 2026

📍 USA Wins Women’s Ice Hockey Gold
✅ Defeats Canada 2–1 (OT)
✅ 3rd Olympic gold

#CurrentAffairs

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निष्काम कर्म का अर्थ
Nishkam Karma means

https://youtube.com/shorts/ezpRvLnMWgA?si=mqv23yS4NPxjL1cO

✅Mitochondrial disease :only passed by mother, not father.
✅Mitochondrial replacement therapy (3-parent baby) : removal of mitochondria from egg cell. Can be done before fertilisation (in-vitro) and after fertilisation (pronuclear transfer)

✅Cloning : Nucleus to be cloned, so the process is also called somatic cell nuclear transfer.
(Nucleus of somatic cell to be cloned + donor's egg cell without nucleus + womb)

✅Somatic cell : Any of the body cells except the reproductive (germ) cells and they can not produce other cell. e.g, Hair cell, Skin cell etc.

✅DNA barcoding : identification of diff species.
✅DNA fingerprinting : differentiation between the same species.

🔆Buddhist Terminology

✅Pratyeka Buddhas: Beings who have attained enlightenment without guidance but have not taught it to the world.
✅Arhat: Who have achieved Nirvana.
✅Bodhisattva: Abeing about to become Buddha shows charity and helper of man.
✅Sramanas/Bhikshu: Buddhist monks.
✅Upasakas: Lay followers.
✅Mahaparinirvana: Final blowing out, death.
✅Arya-Atthangikamagga: Noble eight-fold path.
✅Ashtamahasthanas: Eight holy places.
✅Tathagata: One of the titles of Buddha.
✅Prajna Parimita : Female deity of perfection and insight associated with Mahayana.
✅Anatta: Soullessness.
✅Samnera: Buddhist monks before being introduced into sangha as full-fledged member.
✅Paramita: 10 percepts (vows) observed by monks.
✅Pratimoksa: Rules of 150 articles (a part of Vinay Pitaka).
✅Skandhakas: Monastic rules.
✅Poshadha: Fortnightly meeting in Sanghas.
✅Siddha: Perfected being in Vajrayana.
✅Sakra: Gold identical with Indra used by the monks.
✅Sangha: Buddhist order.
✅Vassa: Retreat during rainy season by the monks.
✅Sangharam: Resting place for monks.
✅Vihara: Buddhist monastery.
✅Pravajya: Initial ordination for old and experienced monks.
✅Sramanas: Buddhist monks, in general.
✅Upajjhaya: Spiritual leader.
✅Sanketas: Four noble truths.
✅Upasotha/Roya: Days of fast on full moon, new moon and two quarter moon days in a month.
✅Chaitya: Temples of Buddhists.

#pre_revision

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Upsc prelims accelerator
40 MCQ /Day
Just 699

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🔆 Preah Vihear Temple

📍 Why in News?
✅ India urges protection amid Thailand–Cambodia border clashes

📍 About Preah Vihear Temple
✅ Location: Cambodia (near Thailand border)
✅ Deity: Lord Shiva
✅ Built under:
• King Yashovarman I (9th–10th C)
• Completed by Suryavarman II (12th C), Khmer dynasty
✅ Status: UNESCO World Heritage Site

#prelims
#art_and_culture

@studytoday1
@upsc_art_and_culture
#cse

#Goodmorning 

⏳90 days  left CSP26[ 24-05-26]
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🔆 Folk Theatre of India

📍 Bhand Pather (Kashmir)
✅ Humour through satire, wit & parody
✅ Musical elements – surnai, nagara, dhol

📍 Bhaona (Assam)
✅ Presentation of Ankia Naat
✅ Cultural glimpses of Assam, Bengal, Orissa, Mathura & Brindavan
✅ Sutradhar begins in Sanskrit → transitions to Brajboli/Assamese

📍 Bhavai (Gujarat)
✅ Found in Kutch & Kathiawar
✅ Blends devotional & romantic themes

📍 Burra Katha (Andhra Pradesh)
✅ Oral storytelling with main narrator + two vanthas
✅ Uses Burra percussion instrument

📍 Chavittu Natakam (Kerala)
✅ Christian art form (17th century)
✅ Also called “stamping drama”

📍 Dashavatar (Konkan & Goa)
✅ Depicts ten incarnations of Lord Vishnu
✅ Stylised make-up; wooden & papier-mâché masks

📍 Daskathia (Odisha)
✅ Two narrators – Gayaka & Palia
✅ Accompanied by wooden instrument kathia

📍 Garodas (Gujarat)
✅ Art of ‘Garoda’ community
✅ Uses painted pictures to narrate romance & valour

📍 Kariyila (Himachal Pradesh)
✅ Open-air night theatre
✅ Series of small plays & skits

📍 Krishnattam (Kerala)
✅ Origin – 17th century under King Manavada (Calicut)
✅ Eight plays over eight consecutive days

📍 Kuravanji (Tamil Nadu)
✅ First composed by Thirukutarajappa Kaviyar
✅ Love-struck heroine theme
✅ Dance ballet in Bharatanatyam style

📍 Mudiyettu (Kerala)
✅ Performed during Vrischikam
✅ In Kali temples
✅ Portrays triumph of Goddess Bhadrakali over Darika

📍 Oja-Pali (Assam)
✅ Linked to Manasa (serpent goddess)
✅ Oja – main narrator; Pali – chorus

📍 Powada (Maharashtra)
✅ Heroic deeds of Shivaji (e.g., Afzal Khan episode)
✅ Sung by Gondhalis & Shahirs

📍 Raasleela (Uttar Pradesh)
✅ Based on Lord Krishna’s legends
✅ Combines prose dialogues with songs

📍 Swang (Punjab & Haryana)
✅ Initially music-based, later prose dialogues
✅ Styles: Rohtak (Haryanvi) & Hathras (Brajbhasha)

📍 Tamasha (Maharashtra)
✅ Female actress (Murki) is chief performer
✅ Classical music, rapid footwork & expressive gestures

🔹 Additional Theatre Forms

📍 Therukoothu (Tamil Nadu)
✅ Cycle of eight plays on Draupadi
✅ Linked to harvest rituals

📍 Villu Pattu (Deccan)
✅ Musical theatre narrating Ramayana stories

📍 Yakshagana (Karnataka)
✅ Open theatre
✅ Episodes from Mahabharata & Ramayana

📍 Other Forms:
✅ MAACH (MP)
✅ NAQAL/BHAND (Punjab)
✅ NAUTANKI (UP)
✅ PAGATI VESHALU (Telangana & AP)
✅ PADAYANI (Kerala)
✅ TAL-MADDale (Karnataka)
✅ BAYALATA (Karnataka)

#prelims
#art_and_culture

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🔆 Encryption

📍 What is Encryption?
✅ Process of scrambling data to make it unreadable to unauthorized parties
✅ Uses a cryptographic key – a set of mathematical values shared between sender and recipient

📍 Types of Encryption

🔹 Symmetric Encryption
✅ Uses a single shared key
✅ Same key for encryption and decryption

🔹 Asymmetric Encryption (Public Key Encryption)
✅ Uses two separate keys
➤ Public key – for encryption
➤ Private key – for decryption

📍 End-to-End Encryption (E2EE)**

✅ Ensures data shared between two devices remains confidential
✅ Prevents third parties (cloud providers, ISPs, cybercriminals) from intercepting data during transmission

📌 Examples:
✅ Messaging apps – WhatsApp, Signal, Telegram
✅ Email services supporting E2EE
✅ VPNs securing internet traffic

📍 How It Works

🔹 Cryptographic Keys
✅ Unique keys generated and stored on sender’s & recipient’s devices

🔹 Encryption
✅ Data converted into unreadable form using complex algorithms

🔹 Decryption
✅ Only devices with the correct key can decode the data

#Science_Technology

🔆 Global Methane Status Report 2025 — Key Facts

📍 Introduction
The UNEP–CCAC report reviews global progress on methane reduction.

📍 Key Highlights
✅ Methane concentrations doubled since pre-industrial era; reached 352 Mt/year (2020); projected to rise 5% by 2030.
✅ Rising methane may cause 24,000 extra premature deaths & 2.5 Mt crop losses annually by 2030.
✅ India = 3rd-largest emitter (~31 Mt/year), mainly from stubble burning, rice cultivation, and livestock.

📍 Global Initiatives
✅ Global Methane Pledge (GMP) — cut methane 30% from 2020 levels by 2030 (India not a signatory).
• Launched at COP26 (2021) by CCAC & partners.
✅ International Methane Emissions Observatory (IMEO) — UNEP-led platform for tracking methane sources globally.

📍 India’s Measures
✅ National Mission on Sustainable Agriculture (NMSA).
✅ Methane mitigation technologies in agriculture:
• System of Rice Intensification (SRI)
• Direct Seeded Rice (DSR) — avoids continuous flooding
• Crop Diversification Programme

#environment

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The Union Ministry of Home Affairs (MHA) has released India’s first-ever anti-terror policy - PRAHAAR

🔆 Mandya Inscription Highlights Hoysala–Tamil Connections

An inscription engraved on a slab at the Sri Mahalakshmi Temple (Mandya, Karnataka) sheds fresh light on 12th-century socio-cultural ties, highlighting strong Hoysala–Tamil connections in the Kaveri basin.

📍 About Hoysala Dynasty (10th–14th Century)
✅ Region: Southern Deccan
& Kaveri (Cauvery) River valley
✅ Initial Capital: Belur → Later shifted to Halebidu (Dwarasamudra/Dorasamudra)
✅ Founder: Nripa Kama II (initially feudatory of Western Gangas)

📍 Administration
✅ Divided into: Nadus → Kampanas → Vishayas → Deshas (descending order)

📍 Sacred Ensembles of the Hoysalas (UNESCO WHS)
✅ Declared as the 42nd UNESCO World Heritage Site
✅ Includes:
• Chennakeshava Temple (Belur)
• Hoysaleshwara Temple (Halebidu)
• Keshava Temple (Somanathapur)

📍 Hoysala Architecture Style
✅ Style: Vesara (Hybrid of Dravidian + Nagara)
▪ Strong influence of Bhumija shikhara (North Indian variety)
✅ Plan: Stellate (Star-shaped) plan
▪ Built on raised platform (Adhisthana)
✅ Material: Soapstone (soft, ideal for intricate carving)
✅ Shrine Types:
• Ekakuta (1 sanctum)
• Dvikuta (2 sanctums)
• Trikuta (3 sanctums)
• Rare Panchakuta (5 shrines)

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🔆 AI Impact Summit 2026 – New Delhi Declaration Adopted

The AI Impact Summit 2026 concluded with the adoption of the New Delhi Declaration, marking a major step toward a coordinated global framework on responsible and inclusive Artificial Intelligence.

📍 About the Declaration
✅ Endorsed by: 87 countries and 2 international organisations — European Union (EU) & International Fund for Agricultural Development (IFAD)

✅ Guiding Principle: “Sarvajan Hitaya, Sarvajan Sukhaya”
▪ Emphasises inclusive, human-centric and welfare-oriented AI governance

✅ Structure:
▪ Built around 7 key pillars
▪ Accompanied by voluntary, collaborative global initiatives

📍 Significance
✅ Promotes global cooperation in AI development
✅ Encourages ethical, safe and inclusive AI deployment
✅ Strengthens the vision of AI for public good

#GS3
#prelims
#science_technology
#science_and_technology

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#Goodmorning 

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