Science & Technology Current Affairs MCQs

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Astronomers using the MeerKAT telescope in South Africa discovered the brightest and most distant megamaser. MeerKAT is a precursor to the Square Kilometre Array (SKA) telescope located in South Africa. It is designed for advanced radio astronomy. A megamaser is a giant beam of electromagnetic radiation produced when two galaxies collide violently. During such cosmic mergers, large gas clouds compress, exciting hydroxyl (OH) molecules, which emit high-energy microwaves.

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New research confirmed that the Silverpit Crater was formed by a massive asteroid impact millions of years ago. It lies about 700 metres beneath the seabed in the North Sea, nearly 80 miles off the coast of Yorkshire. The crater was buried under thick sediment layers and was discovered only in 2002. It formed when a high-velocity space rock struck the seabed around 43–46 million years ago. Scientists found “shocked” quartz and feldspar crystals, which form only under extreme pressure during asteroid impacts. The crater is about 3 km wide and surrounded by circular faults extending nearly 20 km.

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Deloitte India launched ConnectSafe, India’s first cyber-security facility focused on protecting human lives and critical infrastructure. The initiative shifts cyber security focus from data protection to safety of connected operational systems. It addresses growing cyber risks due to India’s rapidly expanding connected ecosystems in mobility, healthcare, manufacturing, energy, agriculture and digital infrastructure. The 4,500 sq ft facility simulates real-world cyber-attack scenarios.It helps organisations test and strengthen security systems without affecting live operations.

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Researchers at Indian Institute of Technology (IIT) Guwahati developed a new MXene-based material for hydrogen fuel production and seawater desalination. The material shows very low Hydrogen Evolution Reaction (HER) overpotential of 12 mV, better than Platinum/Carbon (Pt/C) electrodes, indicating high efficiency. Hydrogen is a clean fuel producing only water, but current production depends on fossil fuels, so this method offers a sustainable alternative. The material also enables solar-powered desalination, addressing the shortage of safe drinking water. Scientists modified MXene into ultra-thin ribbon-like structures to increase surface area and improve charge transport.

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Recent Legionnaires’ disease cases in London and New York have raised global concern. Public health experts warn that densely populated cities, including those in India, could face similar outbreaks if preventive measures are not strengthened. Legionnaires’ disease (LD) is a severe pneumonia caused by the bacterium Legionella, first identified in 1976 at an American Legion convention. Transmission occurs when people breathe in water or soil containing Legionella; it is not contagious and generally cannot spread through drinking water unless aspirated. High-risk groups include older adults, smokers, and people with weakened immune systems.

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CALM-Brain has been launched in Bengaluru as India’s first digital repository focused on brain structure and psychiatric disorders. It has been developed by researchers at the Rohini Nilekani Centre for Brain and Mind, which is a collaboration between NIMHANS (National Institute of Mental Health and Neurosciences) and NCBS (National Centre for Biological Sciences). The repository is built using data collected from Indian patients, making it highly relevant for understanding mental health conditions in the Indian population. It aims to support research in neuroscience and psychiatry, enabling better diagnosis, treatment, and understanding of brain disorders.

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As part of Gaganyaan mission, the Indian Space Research Organisation is conducting Mission MITRA (Mapping of Interoperable Traits and Response Assessment) in Leh from April 2 to April 9, 2026. Mission MITRA is a first-of-its-kind team behavioral study, developed jointly by ISRO and the Institute of Aerospace Medicine, aimed at evaluating crew safety and performance in human spaceflight. The study focuses on team communication, adaptability to stress, psychological resilience, and mutual support, which are critical for mission success. Leh’s high-altitude environment (approx 3,500 metres), hypoxia, low temperature, and isolation serve as a natural analog for spaceflight operations.

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The Drugs Controller General of India (DCGI) has approved Qdenga for individuals aged 4–60 years, making it India’s first dengue vaccine. Qdenga is a live-attenuated, tetravalent vaccine developed by Takeda Pharmaceutical, Japan. It targets all four dengue virus serotypes (DENV-1 to DENV-4), with strongest efficacy against DENV-2 and relatively lower against DENV-3 and DENV-4. It does not require pre-vaccination screening and is administered in two doses, spaced three months apart. The vaccine provides strong protection against severe dengue and reduces hospitalisation rates.

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Scientists at the Bose Institute discovered a new gene regulation mechanism in Tuberculosis bacterium (Mycobacterium tuberculosis). Transcription is the process where DNA is copied into RNA by RNA Polymerase (RNAP) for protein synthesis. Earlier, bacteria were believed to follow the Sigma Cycle, where sigma factor binds RNAP to initiate transcription and then detaches. The study found that in TB bacteria, the sigma factor (σF) remains continuously attached to RNAP throughout transcription. This continuous binding helps activate survival genes, enabling bacteria to persist in hostile conditions inside the human body.

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India has successfully demonstrated a 1,000-kilometre quantum communication network under the National Quantum Mission, a major breakthrough in secure communication technologies. The National Quantum Mission (NQM) was launched by the Department of Science & Technology with an outlay of Rs.6003 crore for 2023-24 to 2030-31. Its objective is to seed, nurture, and scale up scientific and industrial research and development (R&D) and create an innovative ecosystem in Quantum Technology (QT). It is one of nine initiatives under the Prime Minister’s Science Technology Innovation Advisory Council (PM-STIAC).