Science & Technology Current Affairs MCQs

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CSIR-Central Institute of Mining and Fuel Research (CSIR-CIMFR) successfully conducted India’s first trial blast using the Dozer Push Mining Method, integrating digital technologies for enhanced safety and efficiency. The trial took place at Parsa East and Kanta Basan (PEKB) Coal Mine, Chhattisgarh, operated by Adani Enterprises. The method aims to optimize mining processes while controlling vibrations and flyrock. It uses automated machinery, including unmanned drill machines and large-sized dozers. The method is a cost-effective alternative to traditional mining techniques like truck-shovel and dragline methods.

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IIT Roorkee researchers developed a method to degrade plasticizers like diethyl hexyl phthalate (DEHP) using bacterial enzymes. DEHP is found in plastics and personal care products, posing health risks. Esterase enzyme from Sulfobacillus acidophilus breaks DEHP into mono-(2-ethylhexyl) phthalate (MEHP) and 2-ethyl hexanol. The enzyme was structurally studied using X-ray crystallography and remains active for about a month. Researchers used four additional enzymes from Comamonas testosteroni to complete the degradation process. Integrating enzymes into bacteria ensures prolonged activity and continuous degradation without needing fresh batches. Plasticizers enhance flexibility and shine in products but can be absorbed through the skin, posing health dangers.

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South Africa’s MeerKAT telescope discovered a new giant radio galaxy (GRG) named ‘Inkathazo,’ meaning ‘trouble’ in Xhosa and Zulu. The galaxy spans 3.3 million light-years, 32 times the size of the Milky Way, and is 1.44 billion light-years from Earth. GRGs are massive structures that emit jets of hot plasma powered by supermassive black holes. These jets glow at radio frequencies and stretch millions of light-years into space. Once considered rare, GRGs are now being discovered frequently due to advanced radio telescopes like MeerKAT in South Africa’s Northern Cape.

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China has successfully demonstrated artificial photosynthesis in space, with their astronauts on the Tiangong space station producing oxygen and rocket fuel using this technology. The astronauts used a process mimicking natural photosynthesis to convert carbon dioxide and water into oxygen and rocket fuel components using solar energy. The experiment was conducted on China’s Tiangong space station. This breakthrough is considered a major step forward in space exploration, as it could enable future missions to generate necessary resources in space.

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The Blue Ghost Lander is developed by Firefly Aerospace for lunar exploration. It will deliver scientific payloads to the Moon under NASA’s Artemis Program. The lander supports NASA’s Lunar Surface Operations Program for sustainable human exploration. It marks a significant step in private sector involvement in space missions. The mission aims to advance lunar research and exploration efforts.

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Australian researchers created the first-ever kangaroo embryos using in vitro fertilisation (IVF). This was achieved through intracytoplasmic sperm injection (ICSI), a technique used in human fertility treatments. Scientists from the University of Queensland used ICSI to create eastern grey kangaroo embryos by injecting a single sperm into a mature egg. Over 20 embryos have been successfully produced. The sperm and egg were collected from recently deceased kangaroos in wildlife hospitals. This breakthrough aims to help conserve endangered marsupials like koalas, Tasmanian devils, and wombats, addressing Australia’s high mammal extinction rate.

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Engineers in Japan activated Reimei, the world’s first hybrid quantum supercomputer. It features a 20-qubit quantum processor integrated into Fugaku, the world’s sixth-fastest supercomputer. Unlike most quantum computers, Reimei uses trapped-ion qubits, which isolate charged atoms in an electromagnetic ion trap and use lasers for precise control. This hybrid system aims to handle complex calculations beyond traditional supercomputers. It is expected to advance research in physics and chemistry.

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IIT Kanpur introduced an innovative solar dehydration technique to preserve agricultural produce using solar energy. This method helps farmers dry fruits and vegetables, providing a cost-effective way to store produce and sell at better prices. The project is supported by NABARD. It aims to expand to more villages, reducing waste and increasing farmers’ incomes.

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Meta introduced Project Waterworth, the world’s longest undersea cable system. It spans 50,000 km, connecting the U.S., India, Brazil, South Africa, and other regions. The cable reaches depths of up to 7,000 meters in deep waters. Advanced burial methods will protect it in high-risk coastal areas. It strengthens global digital connectivity by opening three new oceanic corridors. The project enhances economic cooperation, digital inclusion, and internet reliability worldwide.

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Russia has developed an mRNA-based personalized cancer vaccine, set for free distribution by early 2025. mRNA vaccines provide genetic instructions to help the body produce antigens that trigger an immune response. Unlike traditional vaccines, this is not preventive but treats existing cancer by targeting tumor-specific antigens. It trains the immune system to attack cancer cells by producing proteins similar to tumor antigens.