Science & Technology Current Affairs MCQs

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U.S.-based biotech company Colossal Biosciences announced the birth of three genetically engineered wolf pups, aiming to revive the extinct dire wolf species after 12,500 years. This marks the first-ever attempt at “de-extinction,” using methods like gene editing (e.g., CRISPR-Cas9), ancient DNA sequencing, cloning, and synthetic biology. De-extinction helps in biodiversity conservation, ecological balance, and climate resilience, and boosts public interest in conservation science. The dire wolf, scientifically named Aenocyon dirus, once lived in North American grasslands and forests during the Pleistocene Epoch and went extinct around 12,500 years ago.

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Sunbird is a nuclear fusion-powered rocket developed by Pulsar Fusion, a British startup, to transform interplanetary travel with much faster speeds. It could reach up to 805,000 km/h, surpassing the current fastest object, NASA’s Parker Solar Probe, which travels at 692,000 km/h. With this speed, Sunbird could reduce travel time to Mars by almost half and reach Pluto in just 4 years. A major orbital test is planned in 2027, showing progress in next-generation space propulsion. Nuclear fusion, which powers Sunbird, fuses atoms like stars do, giving high energy with minimal radioactive waste, unlike nuclear fission.

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China has unveiled the world’s first 16-barrel Anti-Drone Barrage Weapon System to counter drone swarms and missile threats. It uses a “wall of fire” approach instead of traditional point-to-point targeting, increasing chances of hitting fast and unpredictable aerial threats. The system fires dense barrages of projectiles to intercept drones, missiles, rockets, helicopters, and artillery shells. It addresses current air defence gaps against low-cost drone saturation attacks. China plans both domestic deployment and international exports amid rising drone threats near Taiwan.

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Two people in the United States are believed to have died recently from Creutzfeldt-Jakob Disease (CJD), a rare and incurable brain disorder. Creutzfeldt-Jakob Disease (CJD) causes dementia and belongs to a group of diseases called prion disorders or transmissible spongiform encephalopathies (TSEs). Its symptoms are similar to Alzheimer’s disease but progress much faster and lead to death. Creutzfeldt-Jakob Disease (CJD) is very rare, with only 1 to 2 cases diagnosed per million people each year worldwide. It mostly affects older adults and is always serious. The disease is caused by abnormal proteins called prions, which damage the brain by turning healthy prions into harmful ones. These abnormal prions clump together in the brain, leading to nerve cell loss and severe brain damage.

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NISAR (NASA-ISRO Synthetic Aperture Radar) is a joint satellite mission by the National Aeronautics and Space Administration (NASA) and the Indian Space Research Organisation (ISRO). It is set to be launched in June 2025 from the Satish Dhawan Space Centre in Andhra Pradesh using the Geosynchronous Satellite Launch Vehicle Mark II (GSLV Mk II). This is the first radar-based Earth observation mission jointly developed by India and the United States. NISAR will map the entire Earth’s surface every 12 days to provide frequent and accurate data. It will track ecosystem changes, ice movements, vegetation shifts, sea level rise, groundwater levels, and natural disasters like earthquakes, volcanoes, tsunamis, and landslides.

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In a big step towards clean nuclear energy, China has launched the world’s first Thorium Molten Salt Reactor (TMSR) in Wuyi City, Gansu Province, located in the Gobi Desert. This thorium-based reactor started in October 2023 and generates 2 megawatts (MW) of electricity. The project received a $444 million investment since 2011 and is a major shift in global nuclear innovation during China’s trade tensions with the United States (US). China plans to build a 10 MW version by 2030, showing long-term goals in clean energy. Thorium is safer than uranium, creates less radioactive waste, and cannot be easily used for weapons. It must be turned into Uranium-233 (U-233) to be used in reactors, making it complex but promising for safe and sustainable energy.

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Researchers at the Institute of Advanced Study in Science and Technology (IASST), Guwahati, have developed a new optical sensing platform for detecting cholesterol. This platform can detect cholesterol even in trace amounts, below the normal preferred range, making it useful for early disease detection. It is designed to help in regular and efficient monitoring of cholesterol levels in the human body. Cholesterol is an essential lipid produced by the liver and is vital for the functioning of animal tissues, blood, and nerve cells. In mammals, it is transported through the bloodstream to perform various biological functions.

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On April 24, 2025, China launched the Shenzhou-20 mission with three astronauts aboard the Tiangong space station. The mission coincides with China’s 10th Space Day, a celebration of its space exploration achievements. The astronauts will conduct space science experiments, replace the Shenzhou-19 crew, and perform extravehicular activities. They will also carry life science research objects like zebrafish, planarians, and streptomyces to study regeneration and biological processes in space. Space Day, celebrated every April 24, marks the 1970 launch of China’s first satellite, Dongfanghong-1. It highlights China’s commitment to space exploration and encourages public interest in the field.

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The world’s only research centre on mycetoma, a neglected tropical disease, has been destroyed in Sudan’s two-year war. Mycetoma is a chronic, progressively destructive infectious disease of the subcutaneous tissues, affecting the skin, deep tissues, and bones. It was first reported in Madurai, India, in the mid-19th century and was initially called Madura foot. Mycetoma is caused by a variety of microorganisms, either fungal or bacterial. It commonly affects young males aged 15 to 30 years in developing countries. The disease is found in tropical and subtropical regions with short rainy seasons and prolonged dry periods. Mycetoma is endemic in the “Mycetoma belt,” including countries like Sudan, Chad, and India.

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The Electrojet Zeeman Imaging Explorer (EZIE) mission was launched by NASA. Specifically, the mission was a NASA Heliophysics mission designed to study Earth’s auroral electrojets. Auroral electrojets are strong electric currents that flow 60 to 90 miles above the Earth’s polar regions. These currents are caused by the solar wind, a stream of charged particles from the Sun, and they can carry up to 1 million amps of charge per second. EZIE uses three CubeSats, which are small satellites, to investigate how these currents connect Earth’s auroras to its magnetosphere. The mission helps scientists understand how solar activity affects Earth, which is important for predicting space weather events.