Science & Technology Current Affairs MCQs

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The Central Drugs Standard Control Organisation (CDSCO) has approved Qartemi, a second “living drug,” which is a Chimeric Antigen Receptor (CAR) T-cell therapy designed to treat blood cancer. “Living drugs” involve modifying a patient’s cells and reintroducing them into the body. CAR T-cell therapy is an innovative immunotherapy where T-cells are genetically engineered to target cancer cells. T-cells are extracted from the patient’s blood, modified in the lab by adding a gene for a man-made receptor (CAR), which helps T-cells recognize cancer cells. Modified CAR-T cells are then reintroduced to kill cancer cells.

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ISRO launched the Geosynchronous Satellite Launch Vehicle (GSLV) rocket carrying the NVS-02 satellite for the NavIC (Navigation with Indian Constellation) navigation system. NVS-02 is the second of five second-generation satellites to replace older ones in India’s navigation constellation. It weighs 2,250 kg, has a 3 kW power capacity, and includes navigation payloads in L1, L5, S, and C bands. The satellite features a Rubidium Atomic Frequency Standard for precise timekeeping and has a 12-year lifespan.

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Indian researchers at the Indian Institute of Astrophysics (IIA), Bengaluru developed a new method to measure solar storms’ size and speed. The method improves predictions of Coronal Mass Ejections (CMEs), which can disrupt Earth’s communication systems and power grids. It measures CME radial size and expansion speed, crucial for understanding their impact on Earth’s magnetic field. The approach estimates instantaneous expansion speed using a single observation point, making it more efficient. The method was tested on a 2010 CME event and will be used with Aditya-L1 for better space weather forecasting.

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The Finance Minister announced a ₹20,000 crore ‘Nuclear Energy Mission’ to develop indigenous Small Modular Reactors (SMRs). SMRs are small nuclear reactors with a maximum output of 300 MWe, producing 7.2 million kWh per day. In comparison, large nuclear plants generate over 1,000 MWe and 24 million kWh per day. SMRs are small, modular, and reactor-based, generating low-carbon electricity. They have small footprints, lower capital costs, and can be factory-built. SMRs can be deployed in locations unsuitable for large nuclear plants. They support incremental power additions, energy hubs, industrial heating, district heating, and hydrogen production.

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Camp Hill virus, a henipavirus related to Nipah, has been detected in North America, raising outbreak concerns. Henipaviruses are zoonotic RNA viruses from the Paramyxoviridae family, naturally hosted by fruit bats (Pteropus species). They can cross species barriers, infecting mammals, including humans, causing severe respiratory illness and encephalitis. Transmission occurs through infected animals, contaminated food/water, and human-to-human contact. Symptoms range from fever and headache to severe encephalitis, seizures, and coma. Henipaviruses block the innate immune response, aiding viral replication. No vaccine or antiviral drug is available; treatment is only symptomatic.

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The Centre for Nano and Soft Matter Sciences (CeNS) in Bengaluru, India developed the high-entropy alloy (HEA) catalyst for hydrogen production. CeNS is an autonomous institute of the Department of Science and Technology (DST). The catalyst is made of platinum, palladium, cobalt, nickel, and manganese (PtPdCoNiMn). The catalyst was prepared using two methods: electrodeposition and solvothermal processes.  The catalyst is more efficient than pure platinum and uses seven times less platinum than commercial catalysts.  The catalyst is stable and efficient for over 100 hours in alkaline seawater.

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Astronomers discovered Gaia BH3, a massive black hole close to Earth, using the European Space Agency’s (ESA) Gaia telescope. Gaia Mission, launched in 2013, aims to create the most precise 3D map of the Milky Way, surveying 1% of its 100 billion stars. It orbits the Sun at Lagrange Point 2 (1.5 million km from Earth), avoiding atmospheric distortion. Gaia scans the sky every two months using two telescopes. It helps detect exoplanets, main belt asteroids, and Near-Earth Objects (NEOs) by tracking stellar movements and brightness changes.

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NASA will launch the Pandora mission in 2025 to study the atmospheres of distant exoplanets. It will focus on clouds, hazes, and water, key factors for habitability. Pandora aims to fill gaps left by existing telescopes like James Webb Space Telescope (JWST), focusing on planetary transits to improve exoplanet models. The mission will explore planetary formation, evolution, and habitability. Pandora will use a specialized telescope to study light interactions with atmospheric particles, enhancing knowledge of planetary climates and chemistry.

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Researchers discovered a new type of brain cell called Ovoid cells. These neurons help in recognition memory by differentiating between new and familiar objects. They are named for their egg-like shape and are found in the hippocampus of humans, mice, and other animals. Ovoid cells activate when encountering something new, triggering memory storage. This discovery could help treat brain conditions like Alzheimer’s, Autism Spectrum Disorder, and Epilepsy.

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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.