Science and Technology

Why in News Gravitational-wave catalogues now support studies of black-hole populations and tests of general relativity. The clear GW250114 signal came from a merger 1.3 billion light-years away. Prelims Pointers Gravitational waves are ripples in spacetime ,…

Gravitational-wave astronomy is entering its statistical era

Why in News The Directorate General of Foreign Trade (DGFT) prohibited black-mass exports to support domestic battery recycling and mineral recovery. Prelims Pointers Black mass is a powdery mixture of electrode materials from shredded spent lithium-ion batteries and…

Govt. bars export of lithium-ion battery waste

Environment

Why in News The Central Empowered Committee (CEC) sought proof of action by Uttar Pradesh, Madhya Pradesh and Rajasthan against illegal sand mining in the National Chambal Sanctuary . Prelims Pointers National Chambal Sanctuary spans Madhya Pradesh, Rajasthan and…

SC green watchdog seeks proof of enforcement actions against sand mining in Chambal river

Why in News The Indian Agricultural Research Institute (IARI) is still validating burnt-area estimates for Punjab and Haryana. Active-fire counting has a standard protocol, but burnt-area mapping does not yet. Prelims Pointers Active-fire counts and burnt-area maps…

Two years after SC flag, no final protocol to measure burnt area of farm fires

International Relations

Why in News BIMSTEC’s first Health Ministers’ Meeting in Colombo on 11 November adopted a joint statement and the 2026–2030 public-health plan. India offered a traditional-medicine centre in Jamnagar. Prelims Pointers The Bay of Bengal Initiative for Multi-Sectoral…

India Strengthens Regional Health Partnerships as First BIMSTEC Health Ministers’ Meeting Unanimously Adopts Joint Ministerial Statement in Colombo

Why in News India and Norway discussed industrial-waste reuse in construction and hazardous-waste treatment in cement kilns on 10 November. Prelims Pointers Participants included India’s Council of Scientific and Industrial Research (CSIR) , Norway’s SINTEF and the…

India and Norway Explore Joint Technologies to Turn Industrial Waste into Resources for Sustainable Construction

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