science and tech

Earthquake Lights Explained: Mystery Behind Glowing Skies

Context: Researchers are using geological physics to explain "Earthquake Lights" (EQL), the mysterious bluish flashes seen during the Turkey-Syria tremors. About Earthquake Lights (EQLs) Earthquake lights are luminous aerial phenomena that appear in the sky in areas of tectonic stress,...

Internet Censorship in India: Rules, Laws and Challenges

Context: Over the last decade, India’s digital landscape has expanded rapidly, making it one of the world’s largest online markets. Alongside this expansion, however, a complex and often non-transparent system of internet regulation and content control has evolved. Internet Censorship...

INS Aridhaman: India’s Nuclear Submarine, Features and Strategic Significance

Context: India commissioned INS Aridhaman (S4), the third nuclear-powered ballistic missile. About INS Aridhaman Class: Arihant-class Nuclear Powered Ballistic Missile Submarine (SSBN) (part of India’s nuclear deterrence force). Programme: Developed under the Advanced Technology Vessel (ATV) Project (India’s secret submarine...

Aditya-L1 Mission: India’s First Solar Observatory, Objectives and Key Facts

Context: ISRO has released the second Announcement of Opportunity (AO) inviting proposals from the Indian solar physics community for observation time on the Aditya L1 mission. More in News Images captured by Aditya-L1 reveal the Sun's dynamic activities, including a...

Quantum Entanglement in Helium Atom: Concept, Mechanism and Applications

Context: Scientists recently demonstrated momentum entanglement in helium atoms, showing that massive particles can exist in two quantum paths simultaneously while remaining correlated (published in Nature Communications). Steps of the Quantum Entanglement in Helium Atom Experiment BEC Formation: Ultra-cold helium...

Issues in the Earth’s Orbit: Space Debris, Congestion and Risks

Context: The rapid expansion of satellite launches and mega-constellations (e.g., Starlink) has made Earth’s orbital environment increasingly crowded, raising concerns about space debris, collision risks, and weak global governance mechanisms. Issues in the Earth’s Orbit Orbital Congestion: Rapid growth of...

Home Ministry’s AI Vision: Strategy, Goals and Key Initiatives

Context: A Parliamentary Committee report showed how the Ministry of Home Affairs is leveraging artificial intelligence (AI) as “a critical enabler” in strengthening India’s internal security architecture. How AI is being used to tackle Internal Security Threats Predictive Policing: AI...

Rocket Re-entry Pollution: Impact on the Upper Atmosphere Explained

Context: Recent findings published in Communications Earth & Environment have provided the first direct observational evidence that spacecraft re-entry leaves a significant chemical footprint in Earth’s upper atmosphere. Major findings on Rocket Re-entry Pollution A Falcon 9 upper stage re-entered...

Extracellular RNA (exRNA): Types, Functions and Applications

Context: A recent study published in the journal Clean Water (March 2026) reported that extracellular RNA (exRNA) from bacteria can persist in disinfected drinking water, helping scientists understand bacterial survival strategies and improve water disinfection methods. About Extracellular RNA (exRNA)...

Niacin (Vitamin B3) Supplement: Benefits, Side Effects and Uses

Context: A recent medical warning highlighted cases of niacin (vitamin B3) supplement toxicity causing liver injury, raising concerns about the growing use of high-dose supplements marketed for longevity, cholesterol control and wellness. About Niacin (Vitamin B3) Supplement Definition: Niacin (vitamin...