Article 51A
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Study materialScientific RevolutionThe Scientific Revolution was a transformative period in the 16th and 17th centuries that fundamentally changed humanity's understanding of the natural world through observation, experimentation, and mathematics, leading to the foundations of modern science. Current affairsAATAL: India's World-First Integrated Atmospheric Chemistry and Aerosol Toxicity Analysis Laboratory at IITM, New DelhiUnion Minister of State for Science and Technology Dr. Jitendra Singh inaugurated the Integrated Atmospheric Chemistry and Aerosol Toxicity Analysis Laboratory (AATAL) at the IITM New Delhi campus on October 24, 2026. Described as the world's first of its kind, the ₹80 crore facility — set up under Mission Mausam — analyses the chemical fingerprint of Delhi-NCR's air pollution at 400-metre resolution, providing 72-hour forecasts and enabling source-attribution to guide targeted interventions. Current affairsFund for Responding to Loss and Damage (FRLD): $21.6 Million for Nepal FloodsThe Fund for Responding to Loss and Damage (FRLD), operationalised under the UNFCCC framework, has provisionally set aside $21.6 million for Nepal following the devastating August 2026 floods — marking the fund's first-ever allocation for a specific disaster. The allocation covers less than 0.5% of Nepal's estimated $4.77 billion recovery needs, highlighting the vast gap in climate finance for vulnerable nations. Current affairsJapan's MMX Mission Launched: World's First Sample Return from Mars's Moon PhobosJapan's JAXA launched the Martian Moons eXploration (MMX) spacecraft on October 19, 2026 (UTC) aboard an H3-24L rocket from Tanegashima Space Center. MMX will arrive at the Martian system in August 2027, collect at least 10 grams of surface material from Phobos — Mars's larger moon — and return samples to Earth in July 2031, marking humanity's first sample return from the Martian system and potentially resolving the mystery of Phobos's origin. Current affairsGlobal Hunger Index 2026: India Ranks 100th, Remains in 'Serious' CategoryThe Global Hunger Index (GHI) 2026, released on October 14, 2026, by Welthungerhilfe, the Institute for International Law of Peace and Armed Conflict (IFHV), and Helvetas, ranked India 100th among 122 countries with a GHI score of 24.1 — still in the 'serious' category despite significant improvement from a score of 37 in 2006. The 2026 report's theme is "No Security Without Food Security." Current affairsWWF Living Planet Report 2026: Global Wildlife Populations Down 73% Since 1970The WWF Living Planet Report 2026, released on October 7, reveals that monitored vertebrate wildlife populations have declined by an average of 73% between 1970 and 2022. Freshwater species suffered the steepest loss at 85%, while Latin America and the Caribbean recorded the worst regional decline at 95%. The report simultaneously documents conservation success stories — tigers, turtles, and tuna recovering — and calls for urgent global action to halt the biodiversity crisis before critical tipping points are crossed. Current affairsInternational Day of the Girl Child 2026 (October 11): Theme, Child Marriage, and India's Legal FrameworkThe United Nations observes International Day of the Girl Child every year on 11 October. The 2026 theme is "End child marriage and invest in girls' rights," reflecting the global urgency to eliminate child marriage affecting approximately 12 million girls annually. India, home to the largest number of child brides globally in absolute terms, has robust legal provisions against child marriage while continuing to address enforcement and social norm gaps. Current affairsNobel Peace Prize 2026: Navi Pillay Awarded for Promoting Peace and International LawThe Norwegian Nobel Committee on 9 October 2026 awarded the Nobel Peace Prize to South African jurist Navanethem "Navi" Pillay — former UN High Commissioner for Human Rights, International Criminal Tribunal for Rwanda President, and ICC judge — "for her efforts to promote peace and international law," recognising her pivotal role in prosecuting war crimes and genocide. Current affairsWorld Development Report 2026: 'The Promise of Artificial Intelligence' — Key Findings for India and Developing EconomiesUnion Minister Ashwini Vaishnaw launched the World Bank's flagship World Development Report 2026 — titled 'The Promise of Artificial Intelligence' — in New Delhi on 9 October 2026. The report finds that only ~4% of Indian jobs face immediate automation risk (vs one-third in advanced economies), recommends developing nations adopt open-source AI models for local needs, and positions AI as a productivity lever for healthcare, agriculture, and education in low- and middle-income countries. Current affairsWorld Bank India Development Update October 2026: GDP Growth Forecast Raised to 7.1% for FY27, India Among Top 10 in AI ReadinessThe World Bank's India Development Update (October 2026) has raised India's GDP growth forecast for FY2026–27 to 7.1% (from 6.6% in April), citing robust domestic demand and export performance. The report's special focus — "India and Artificial Intelligence: Seizing the Development Opportunity" — ranks India among the top 10 emerging markets in AI readiness and notes that private AI investment in India tripled to USD 4.1 billion in 2025 from USD 1.2 billion in 2024. Current affairsNobel Prize in Physics 2026: Francis Halzen Awarded for IceCube Neutrino Observatory and Discovery of High-Energy Astrophysical NeutrinosBelgian-American physicist Francis Halzen of the University of Wisconsin–Madison has been awarded the 2026 Nobel Prize in Physics for his decisive contributions to the IceCube Neutrino Observatory at the South Pole and the landmark discovery of high-energy neutrinos of astrophysical origin — opening a new era of multi-messenger astronomy and deepening humanity's understanding of the high-energy universe. Current affairsNobel Prize in Physiology or Medicine 2026: Karl Deisseroth, Peter Hegemann and Georg Nagel Awarded for OptogeneticsThe 2026 Nobel Prize in Physiology or Medicine was awarded on 5 October 2026 to Karl Deisseroth (Stanford/HHMI), Peter Hegemann (Humboldt University, Berlin) and Georg Nagel (University of Würzburg) for their discoveries concerning light-gated ion channels and optogenetics — a revolutionary neuroscience tool that enables precise control of individual nerve cells using light. Current affairsIndia's First Free-Space Quantum Key Distribution Link: QNu Labs, BISAG-N and IIT Gandhinagar Demonstrate 5.56 km QKDQNu Labs, in collaboration with BISAG-N (Bhaskaracharya National Institute for Space Applications and Geo-informatics) and IIT Gandhinagar, has demonstrated India's first free-space Quantum Key Distribution (QKD) link over 5.56 km, achieving a quantum bit error rate (QBER) below 5% and a secure key rate of 230–260 bits per second — a foundational step toward India's quantum-secure communication network.
In previous-year questions
- Which Fundamental Duty under Article 51A of the Constitution of India is most directly reinforced by the observance of Partition Horrors Remembrance Day?UPSC · Current Affairs
- Article 48A of the Constitution of India, added by the 42nd Constitutional Amendment (1976), directs the State to:UPSC · Current Affairs
- The Madurai Bench of the Madras High Court declared the Thamirabarani River a legal person in 2026 (WP(MD) 18560/2026). What legal basis did the court primarily rely on for granting this personhood?UPSC · Current Affairs
- Article 48A of the Indian Constitution, which directs the State to protect and improve the environment, was inserted by which Constitutional Amendment?UPSC · Current Affairs
- Which Fundamental Duty under Article 51A of the Indian Constitution specifically requires citizens to "protect and improve the natural environment including forests, lakes, rivers and wildlife, and to have compassion for living creatures"?UPSC · Current Affairs
- Which Fundamental Duty in the Indian Constitution specifically casts an obligation on every citizen to protect and improve the natural environment including forests, lakes, rivers, and wildlife?UPSC · Current Affairs
- Which Article of the Indian Constitution imposes a Directive Principle on the State to protect and improve the environment and to safeguard the forests and wildlife of the country?UPSC · Current Affairs
- Which Directive Principle of State Policy in the Indian Constitution places an obligation on the State to protect monuments or places of artistic or historic interest declared of national importance?UPSC · Current Affairs
- Which Constitutional Article directs the State to protect every monument or place of artistic or historic interest declared by Parliament to be of national importance — directly relevant to the conservation of UNESCO-listed heritage sites in India?UPSC · Current Affairs
- Which Directive Principle of State Policy (DPSP) under the Indian Constitution directs the State to protect and improve the environment and safeguard forests and wildlife — the constitutional foundation for protecting national parks like Mathikettan Shola?UPSC · Current Affairs
- Article 48A of the Indian Constitution, inserted by the 42nd Constitutional Amendment (1976), directs the State to protect and improve the environment. Under which category of constitutional provisions does Article 48A fall?UPSC · Current Affairs
- The Directive Principle under Article 43 of the Indian Constitution, which mandates the State to secure a living wage for workers, is the constitutional basis for social security legislation like the EPFO. In which Part of the Constitution are Directive Principles of State Policy contained, and what is their key legal characteristic?UPSC · Current Affairs