Science & Technology Current Affairs MCQs

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Seaweed farming has emerged as a potential Blue Carbon strategy, but empirical estimates of carbon burial from these farms are still limited. Blue Carbon refers to organic carbon captured and stored by oceans in vegetated coastal ecosystems such as mangrove forests, saltmarshes, and seagrass meadows. The term “Blue” highlights the watery nature of this carbon storage. Most blue carbon is carbon dioxide dissolved directly into the ocean. These ecosystems cover 2% of the ocean surface but account for 50% of the ocean’s carbon absorption. Blue carbon ecosystems are crucial for global climate change mitigation.

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The Indian Space Research Organisation (ISRO) will launch the first uncrewed Gaganyaan mission (G1) in December 2025. The mission will carry Vyommitra, a female half-humanoid robot. Vyommitra will monitor the module, issue alerts, and manage life-support operations. ISRO plans five launches in 2025 and four in 2026. Upcoming launches include Oceansat-3A, NVS-03 (Navigation Satellite), TDS-01 (Technology Demonstration Satellite), and BlueBird Block 2. ISRO declared 2025 as “Gaganyaan Year” to highlight its human-spaceflight ambitions. The mission is a key step towards India’s future crewed space missions.

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Gaza has recently reported a surge in Guillain-Barré Syndrome (GBS), raising health concerns. Guillain-Barré Syndrome (GBS) is a rare autoimmune condition where the immune system attacks the peripheral nervous system. The peripheral nervous system controls muscle movement, pain, temperature, and touch sensations. It is also called Acute Inflammatory Demyelinating Polyradiculoneuropathy (AIDP). It commonly affects people between 30 and 50 years of age. It usually follows viral or bacterial infections, vaccination, or surgery.

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The Department of Animal Husbandry & Dairying (DAHD) under the Ministry of Fisheries, Animal Husbandry & Dairying has recently issued the Revised National Action Plan on Glanders. Glanders is caused by the bacterium Burkholderia mallei and mainly affects equines like horses, mules, and donkeys, with risks to other animals and humans. It causes nodules and ulcerations in the respiratory tract and lungs, with a skin form known as farcy. Transmission occurs through contaminated food or water, infected harness equipment, or horse meat. It is a World Organisation for Animal Health (WOAH)-listed disease and must be notified under the WOAH Terrestrial Animal Health Code.

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A study of fossil leaves from Nagaland revealed how Antarctica influenced the Indian Monsoons. Fossil leaves from the Laisong Formation in Nagaland revealed that the region once had a warm and wet climate with very high rainfall and temperatures. The fossils matched the period when massive ice sheets began forming in Antarctica, showing a global connection. Growth of Antarctic ice reshaped global wind and rainfall patterns by shifting the Intertropical Convergence Zone (ITCZ) toward the tropics. This shift brought intense monsoonal rains to Northeast India and led to the evolution of the monsoon system. The research used CLAMP (Climate Leaf Analysis Multivariate Program) method to analyze fossil leaves. CLAMP treats fossil leaves as “climate fingerprints” to reconstruct past climates.

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Chinese researchers have developed a bone glue named Bone-02, unveiled on 10 September 2025 in Zhejiang Province. It can repair fractures and shattered bone fragments in just 3 minutes, even in blood-rich environments. The glue is bio-absorbable, removing the need for a second surgery to remove implants. It may replace metal implants like plates and screws used in conventional surgeries.

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ISRO Chief V. Narayanan announced that a half-humanoid robot Vyommitra will be sent in December 2025 as part of the first uncrewed Gaganyaan mission. Two more uncrewed missions are planned in 2026 before sending India’s first astronaut, Gaganyatri, to space in early 2027. ISRO successfully conducted the first Integrated Air Drop Test (IADT-01) for the parachute-based deceleration system with support from the Indian Air Force, DRDO, Navy, and Coast Guard. Human Rated Launch Vehicle (HLVM3), Crew Escape System, and propulsion systems have been tested.

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Indian Institute of Technology, Madras (IIT-Madras) has been nominated as a United Nations (UN) Centre of Excellence (COE) for Artificial Intelligence (AI), capacity building, and skilling. The nomination was announced by Ministry of Electronics and Information Technology (MeitY) Secretary S Krishnan at the 80th UN General Assembly in New York. The Centre of Excellence will operate under the UN Office for Digital and Emerging Technologies (ODET) to support the Global South in AI capacity building. India’s AI mantra is “capacity is the new connectivity” to bridge global AI gaps.

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The Ministry of Ayush inaugurated “Prayas,” an Integrated Neuro-Rehabilitation Centre at the All India Institute of Ayurveda (AIIA), Goa, on the 10th Ayurveda Day. “Prayas” is among the first multidisciplinary centres in India integrating Ayurveda, Physiotherapy, Yoga, Speech Therapy, Occupational Therapy, and modern Paediatrics. The facility focuses on holistic neuro-rehabilitation, especially for children with neurological and developmental conditions. It aims to provide treatment, research, training, and renewed quality of life for patients. The initiative aligns with India’s National Health Policy and global integrative healthcare practices.

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A new 3D map of stellar nurseries has been created using data from the Global Astrometric Interferometer for Astrophysics (GAIA) telescope. The map covers star-forming regions within 4,000 light-years of the Sun in all directions. It shows glowing hydrogen gas clouds, helping scientists study star formation and interstellar gas dynamics. The study combines Gaia dust maps with radiation effects from 87 massive O-type stars emitting ultraviolet light that ionises hydrogen gas. The simulation aligns with older hydrogen emission maps but provides higher precision. GAIA, launched in 2013 by the European Space Agency (ESA), aims to create the most precise 3D map of the Milky Way Galaxy. The telescope is positioned at Lagrange Point 2 (L2), 1.5 million km from Earth, for a stable cosmic view.