Science & Technology Current Affairs MCQs

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A Marburg virus disease (MVD) outbreak in Rwanda caused 15 deaths and 66 infections. MVD is a rare and severe hemorrhagic fever affecting humans and primates, caused by the Marburg virus (MARV) and Ravn virus (RAVV). It belongs to the filovirus family, like Ebola, and is among the deadliest human pathogens. Rousettus aegyptiacus fruit bats are the natural hosts of the Marburg virus. Transmission occurs through contact with infected bats, primates, or body fluids. The first outbreak was in Marburg, Germany (1967); recent cases occurred in Tanzania, Ghana, and Rwanda. No effective drugs or vaccines exist for MVD.

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China launched the world’s first self-driving satellites, Siwei Gaojing-2 03 and Gaojing-2 04, marking a milestone in its commercial space program. Developed by the Shanghai Academy of Spaceflight Technology (SAST), these satellites can autonomously adjust their flight paths without ground control. They feature synthetic aperture radar (SAR) and high-precision radar, allowing them to return to orbit with 100-meter accuracy and perform formation-flying at sub-meter precision. The satellites will provide all-weather radar imagery for industries like natural resource management, disaster response, agriculture monitoring, and urban safety.

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The ISRO-NASA joint satellite, NISAR, is now scheduled for launch in March 2025. It was initially planned for early 2024 but faced delays due to technical issues. It will provide critical data on natural hazards and climate change effects, mapping the globe every 12 days. With advanced radar capabilities, NISAR can collect data day and night, enhancing disaster response and resource management. This collaboration reflects a significant milestone in US-India space relations, initiated in 2014, to address global environmental challenges through innovative technology and open-access data.

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India’s first diabetes biobank has been established in Chennai by the Indian Council of Medical Research (ICMR) and Madras Diabetes Research Foundation (MDRF). It stores biological samples to support scientific research with ICMR’s approval. The biobank focuses on studying the causes, variations, and related disorders of Indian diabetes. Blood samples are collected from two ICMR studies: the India Diabetes (INDIAB) study (2008-2020) and the ongoing registry of young-onset diabetes (since 2006).

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Buruli ulcer is a chronic skin disease caused by bacteria ‘Mycobacterium ulcerans’. It mainly affects regions in West and Central Africa and has recently been reported in Australia. The disease spreads to humans through mosquitoes, with possums acting as the primary bacterial reservoir. Symptoms include non-healing ulcers that can cause severe tissue damage if untreated. Early diagnosis and treatment with antibiotics and surgery are crucial for managing the disease. The World Health Organization recognizes it as a neglected tropical disease, highlighting the need for increased awareness due to rising cases.

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India plans to launch a quantum satellite for secure communications within 2-3 years. A quantum satellite is a communication satellite that employs the principles of quantum physics to secure its signals, ensuring highly secure and tamper-proof communication by using methods like quantum encryption and Quantum Key Distribution (QKD). The National Quantum Mission (NQM), launched by India in April 2023, aims to boost quantum technology for advanced communication and sensing systems. China launched the first quantum communications satellite, Micius, in 2016.

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ISRO is set to launch 24 scientific experiments on the PSLV Orbital Experimental Module (POEM) satellite under the SpaDeX Mission. The Space Docking Experiment (SpaDeX) aims to develop autonomous space docking technology. The mission will use PSLV-C60 to demonstrate docking with two spacecraft: Chaser (SDX01) and Target (SDX02). This technology is vital for future lunar missions, the Bharatiya Antariksh Station (BAS), and advanced space programs. The spacecraft will separate, align into the same orbit, and achieve docking to demonstrate power transfer before undocking for further operations. The mission’s orbit is 470 km at a 55-degree inclination.

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Rwanda has declared its first-ever Marburg Virus Disease (MVD) outbreak over, with 42 days without new cases, confirmed by WHO. MVD is a severe, often fatal hemorrhagic fever caused by the Marburg virus, with no approved vaccines or treatments. First identified in 1967 in Marburg, Germany, linked to infected green monkeys. Outbreaks are mainly in sub-Saharan Africa, including Tanzania, Uganda, Angola, Ghana, Kenya, and Zimbabwe. The virus is transmitted from fruit bats to humans, spreading through direct contact with infected bodily fluids or contaminated surfaces.

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Turkey successfully tested the UAV-122 supersonic missile fired from the Bayraktar Akinci drone. Bayraktar Akinci is a long-endurance unmanned combat aerial vehicle (UCAV) developed by Turkish manufacturer Baykar. It supports fighter jets with air-to-ground and air-to-air attack capabilities. The drone measures 12.2 m in length, 4.1 m in height, and has a 20 m wingspan. It offers a 25-hour flight time and 7,500 km range. Equipped with AI-powered avionics, dual satellite communication, advanced radars, and collision avoidance systems, it enhances real-time situational awareness. It carries laser-guided munitions, missiles, and long-range weapons and is the first drone capable of launching air-launched cruise missiles.

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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.