Current Affairs

Science & Technology

Syllabus-mapped editorials, PIB updates, reports, judgments, and policy news for prelims and mains revision.

22 July 2026

GS-3PIB Daily22 Jul 2026pib.gov.in

RailOne App Gains Widespread Popularity Among Passengers with 4.55 Crore Downloads and Average Daily Ticket Bookings of 9.65 Lakh

The article details the widespread adoption of the RailOne App, launched by Indian Railways to enhance passenger experience by consolidating various services like reserved, unreserved, and platform ticketing, train enquiry, PNR enquiry, and grievance redressal (RailMadad) into a single mobile platform. It highlights the app's significant download and daily ticket booking figures. A major part of the article focuses on the robust cybersecurity measures implemented to safeguard the ticketing system from cyber attacks and fraud, including Aadhaar authentication for Tatkal tickets, multi-layered application, network, and infrastructure security controls (DDoS, OWASP, WAF, CDN), physical security (ISO 27001 certified data center), continuous security audits (CERT-In TSAP integration), and administrative/systemic anti-fraud measures. It also provides data on tout arrests by RPF and the high percentage of bot requests denied access to the e-ticketing system, demonstrating the effectiveness of these security protocols and the increasing shift towards online ticketing.

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GS-3PIB Daily22 Jul 2026pib.gov.in

PARLIAMENT QUESTION: NUCLEAR ENERGY MISSION FOR VIKSIT BHARAT

India has launched the Nuclear Energy Mission (NEM) with a target of achieving 100 GWe nuclear power generation capacity by 2047 to support the Viksit Bharat vision and net-zero emissions goal by 2070. The mission also aims to develop and operationalize at least five indigenous Small Modular Reactors (SMRs) by 2033, with BARC undertaking design and development. The SHANTI Act, 2025, has been enacted to facilitate this expansion by opening the nuclear energy sector to private participation and granting statutory status to the Atomic Energy Regulatory Board (AERB) for independent regulation. The roadmap outlines a phased increase from the current 8.78 GW to 22 GW by 2031-32, and 100 GW by 2047, involving indigenous Pressurised Heavy Water Reactors (PHWR), Light Water Reactors (LWR), and SMRs, with significant contributions from public, private, and joint ventures. The article emphasizes the highest priority accorded to nuclear safety, security, and robust waste management practices, governed by AERB guidelines and the Atomic Energy (Safe Disposal of Radioactive Wastes) Rules, 1987.

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GS-3PIB Daily22 Jul 2026pib.gov.in

PARLIAMENT QUESTION: BHARAT FORECAST SYSTEM

The Bharat Forecast System (BharatFS) is India's indigenously developed high-resolution global weather prediction model, operating at 6 km horizontal resolution using a Triangular Cubic Octahedral (TCo) dynamical grid. Powered by supercomputing facilities Arka (IITM-Pune) and Arunika (NCMRWF-Noida), it significantly enhances India's real-time weather forecasting capabilities, making India the only country running such a high-resolution global model. BharatFS aims to provide localized forecasts at the panchayat level and improve the prediction of extreme weather events, thereby aiding farmers in crop planning, water authorities in reservoir management, and strengthening disaster preparedness. Developed by Indian institutions like IITM-Pune, NCMRWF-Noida, and IMD, it aligns with the 'Make in India' initiative, advancing India's scientific capabilities and reinforcing its regional leadership.

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GS-3PIB Daily22 Jul 2026pib.gov.in

DAE-Nurtured Olympiad Programme Powers India's Yuva Shakti at International Science and Mathematics Olympiads 2026

The Department of Atomic Energy (DAE) has played a pivotal role in India's exceptional performance at the International Physics, Chemistry, Biology, and Mathematics Olympiads 2026, where India secured 12 Gold and 7 Silver medals, including historic 'Golden Sweeps' in Physics and Chemistry. This success is attributed to the DAE-supported National Olympiad Programme, spearheaded by the Homi Bhabha Centre for Science Education (HBCSE), a National Centre of the Tata Institute of Fundamental Research (TIFR). The program focuses on rigorous talent identification, training, and mentoring, demonstrating India's sustained investment in nurturing scientific talent and its emergence as a global force in science and mathematics.

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GS-3News & Analysis22 Jul 2026thehindu.com

Quality sleep key to protecting brain health amid rising screen time, say neurologists

Neurologists warn that increasing screen time, chronic stress, and irregular sleep patterns are severely impacting brain health, leading to cognitive decline and a higher risk of neurological disorders like stroke and dementia. On World Brain Day (July 22), experts emphasized that quality sleep is crucial for brain repair, memory consolidation, and metabolic waste clearance. Excessive screen exposure disrupts the circadian rhythm by suppressing melatonin, while chronic stress elevates cortisol, both negatively affecting brain function. Recommendations include 7-8 hours of quality sleep, reduced screen time before bed, physical activity, a balanced diet, and stress management techniques.

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09 July 2026

GS-3News & Analysis09 Jul 2026thehindu.com

The quantum computing age will only begin when we silence the noise

The article delves into the foundational principles, current challenges, and future potential of quantum computing. It explains core concepts like quantum mechanics, qubits, superposition, and entanglement, contrasting them with classical computing. Key challenges such as decoherence, noise, and high error rates are discussed, alongside recent breakthroughs in error correction, notably by Google Quantum AI. The article also highlights India's National Quantum Mission (NQM) and its objectives, emphasizing the long-term vision for quantum technologies despite current limitations in practical utility.

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05 July 2026

GS-3News & Analysis05 Jul 2026thehindu.com

Why tanks still matter in modern warfare

The article discusses the continued relevance of tanks in modern warfare, emphasizing that ground presence is crucial for territorial control despite advancements in drones and precision weapons. It highlights the evolution of tanks with advanced protection, sensors, and networked capabilities, drawing lessons from the Russia-Ukraine war regarding their vulnerabilities to drones and their effectiveness in integrated combined-arms operations. The piece focuses on India's strategic initiatives, including the indigenous Zorawar light tank for high-altitude operations along the Line of Actual Control (LAC) and Project Ranjeet (Future Ready Combat Vehicle) to replace aging main battle tanks, addressing India's unique dual challenge of conventional warfare in plains and armoured operations in the Himalayas.

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04 July 2026

GS-3News & Analysis04 Jul 2026thehindu.com

Centre orders blocking of battery management apps used to turn off e-rickshaws

The Union government has ordered the blocking of certain battery management apps, primarily developed by Chinese firms, after they were found to be exploited to remotely shut down e-rickshaw batteries, even while transporting passengers. This vulnerability, which does not require internet access, has led to incidents of extortion and public safety concerns. The article highlights the lack of cybersecurity requirements in e-rickshaw testing standards and mentions that such acts are punishable under IPC/BNS sections for criminal mischief.

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03 July 2026

GS-3News & Analysis03 Jul 2026thehindu.com

Indian team discovers rare ‘bow and arrow’ radio galaxy two billion light years from Earth

An Indian-led team of researchers has discovered a rare, bow-and-arrow shaped radio galaxy, named RAD-BAARG, approximately two billion light-years from Earth. This unique structure, 1.8 million light-years wide, was identified using the LOFAR Two-metre Sky Survey. The discovery, published in the 'Monthly Notices of the Royal Astronomical Society', was made by the RAD@home Astronomy Collaboratory, India's first citizen science platform in astronomy. The unusual morphology is attributed to the interaction of the galaxy's radio plasma with a large bow-shock structure formed as the host galaxy falls through hot gas towards a cluster of galaxies. The structure was named after Manipur's Loktak Lake.

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GS-3Editorials03 Jul 2026thehindu.com

A hold on AI: on the Preliminary Report of the Independent International Scientific Panel on AI

The article discusses the UN's Preliminary Report of the Independent International Scientific Panel on AI, highlighting critical fault lines such as the Global South-Global North divide in AI benefits and the regulatory challenges faced by poorer countries. It emphasizes the rapid, largely unregulated proliferation of AI technologies, their potential for significant societal harms (e.g., deepfakes, economic risks, impact on news media), and the urgent need for governments, including India, to proactively assert control and hold AI firms accountable to mitigate broad damage.

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02 July 2026

GS-3Editorials02 Jul 2026thehindu.com

The case for building India’s coal chemistry capability

The article advocates for India to build its coal chemistry capability to enhance energy security and reduce dependence on imported resources like LPG. It highlights India's success in managing crude supply disruptions through refinery flexibility, a result of indigenous R&D and technical discipline. The core argument is to apply similar discipline to coal chemistry, specifically through coal gasification to produce Dimethyl ether (DME), a clean-burning substitute for LPG. DME can be blended with LPG, potentially displacing significant imports and saving foreign exchange. The article mentions a Union Cabinet-approved scheme of ₹37,500 crore to promote surface coal and lignite gasification, targeting 100 million tonnes annually by 2030, and emphasizes the role of institutions like CSIR's National Chemical Laboratory and the Centre for High Technology in developing and scaling indigenous technologies.

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01 July 2026

GS-3Editorials01 Jul 2026thehindu.com

Reimagining sovereign AI for India’s strategic future

The article discusses the global trend of governments asserting national advantage in AI policy, citing examples from the US and Europe. It argues that India needs a coherent strategy for "sovereign AI" to leverage frontier technology without becoming strategically dependent on foreign models. The author suggests government intervention to underwrite geopolitical risks for firms and calls for the Indian tech industry to enhance innovation and global competitiveness, aiming for deep integration with global AI ecosystems while steadily reducing strategic vulnerabilities.

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