Science & Technology Current Affairs MCQs

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A recent study in the New England Journal of Medicine found that a weekly dose of semaglutide shows strong results in treating Metabolic Dysfunction-Associated Steatohepatitis (MASH). Semaglutide is a Glucagon-Like Peptide-1 (GLP-1) receptor agonist, first developed to treat Type 2 diabetes. It is the main ingredient in medicines like Ozempic, used for diabetes, and Wegovy, used for weight loss. MASH is a severe type of fatty liver disease caused by metabolic problems and not by alcohol. It involves fat buildup, inflammation, and liver scarring, and is linked to obesity, diabetes, and overnutrition. If not treated, MASH can lead to cirrhosis or liver failure.

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NASA’s Imaging X-ray Polarimetry Explorer (IXPE) recently solved the mystery behind X-ray emissions in black hole jets. IXPE is a joint satellite mission by the National Aeronautics and Space Administration (NASA) and the Italian Space Agency, launched on December 9, 2021. It is the first satellite designed to measure the polarisation of X-ray light, helping scientists study extreme cosmic environments. The mission focused on blazars, which are a type of active galactic nucleus with a supermassive black hole ejecting a powerful jet of particles aimed toward Earth.

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Kerala recently reported a new case of Nipah virus infection, highlighting the state’s renewed struggle with this rare and deadly zoonotic virus. The Nipah virus, according to the World Health Organization (WHO), is a newly emerging zoonosis, meaning it is transmitted from animals to humans. The virus primarily spreads through fruit bats and contaminated food, making it a significant public health threat. Nipah virus infection progresses rapidly, and there is no specific treatment available for it. The virus is known for its high fatality rate and the potential for human-to-human transmission.

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A recent study in Nature Geoscience found that soil microbes, particularly fungi and bacteria, play a central role in regulating phosphorus availability and cycling over a span of 700,000 years in the Cooloola coastal dune system. These microbes manage the release and transformation of phosphorus in nutrient-poor soils, acting as crucial “gatekeepers” in ecosystem nutrient dynamics. These microbes adapt by replacing phospholipids with non-phosphorus lipids and storing fats to reduce phosphorus demand. They also improve phosphorus use efficiency in their metabolism to survive in low-phosphorus soils. Microbes both compete with plants for phosphorus and help them by recycling it and improving access.

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Denmark has inaugurated the world’s first large-scale commercial e-methanol facility in Kasso, southern Denmark. It has a production capacity of 42,000 metric tons (53 million litres) of e-methanol annually. E-methanol offers a viable path for reducing emissions in sectors like shipping and chemical manufacturing. E-methanol is produced by combining green hydrogen with captured carbon dioxide.

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On May 19, 2025, the World Health Organization (WHO) honoured Austria, Norway, Oman, and Singapore for eliminating industrially produced trans fats from their national food supply. The announcement was made at the 78th World Health Assembly in Geneva, Switzerland. Trans fats, also called trans-fatty acids (TFA), are harmful unsaturated fats linked to over 278,000 deaths each year. WHO launched the global goal in 2018 to eliminate trans fats by 2025, but progress remains slow. By May 2025, 60 countries had adopted best-practice policies, covering only 46% of the global population. India implemented such a policy in 2022 through the Food Safety and Standards (Prohibition and Restrictions on Sales) Second Amendment Regulations, 2021. India is among the leading Asian countries in enforcing best-practice policies, alongside Thailand.

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NASA’s 2001 Mars Odyssey orbiter recently captured a breathtaking image of Arsia Mons volcano rising above early morning clouds on Mars. Arsia Mons is a giant shield volcano in the Tharsis region of Mars. It stands over 18 kilometers tall and spans more than 300 kilometers wide at its base. It is much larger than Earth’s tallest volcano, Mauna Loa, which is 9 kilometers high. Arsia Mons is the southernmost volcano in the Tharsis Montes group, which includes three major volcanoes.

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The NASA-ISRO Synthetic Aperture Radar (NISAR) satellite has recently reached the Indian Space Research Organisation’s (ISRO) spaceport at Sriharikota. It is a joint mission between the National Aeronautics and Space Administration (NASA) and ISRO to study Earth’s changes. NISAR uses Synthetic Aperture Radar (SAR) technology to send energy pulses and measure how much is reflected back from Earth. This helps in capturing sharp images of the Earth even during darkness or cloudy weather. It detects changes in land, forests, and ice, and is useful for monitoring natural disasters and soil conditions.

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India has gained global recognition in animal health as the ICAR-National Institute of High Security Animal Diseases (NIHSAD) in Bhopal was recently designated as a Category A Rinderpest Holding Facility (RHF) by the World Organisation for Animal Health (WOAH) and the United Nations’ Food and Agriculture Organization (FAO). Rinderpest, also called cattle plague, is a deadly viral disease caused by a Morbillivirus from the Paramyxoviridae family. It mainly affects cloven-hoofed animals like cattle and buffalo, with mortality rates reaching up to 100 percent in highly vulnerable herds.

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Adani Group has recently commissioned India’s first off-grid 5 megawatt (MW) green hydrogen pilot plant in Kutch, Gujarat. The plant has been developed by Adani New Industries Limited (ANIL), which is the clean energy arm of Adani Enterprises Limited. An off-grid green hydrogen plant produces hydrogen using electrolysis powered entirely by renewable sources like solar or wind and is not connected to the main power grid. This plant runs fully on solar energy and includes a Battery Energy Storage System (BESS) for continuous operation.