Science & Technology Current Affairs MCQs

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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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Shri. S. Krishnan, Secretary of the Ministry of Electronics and Information Technology, inaugurated the National Institute of Electronics and Information Technology (NIELIT) Centre of Excellence (CoE) in Chip Design at Noida. It aims to enhance India’s semiconductor design and VLSI (Very Large-Scale Integration) capabilities. The Centre will provide research, innovation, and training to develop a skilled workforce. Facilities include a Project Lab for chip design and a Smart Classroom for immersive learning. A VLSI-based Intellectual Property (IP) demonstration showcased its commitment to semiconductor advancement.

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The US Navy successfully tested the High-Energy Laser with Integrated Optical Dazzler and Surveillance (HELIOS) laser weapon on the USS Preble in 2024. HELIOS, developed by Lockheed Martin, can destroy targets (Hard Kill) or disable electronics (Soft Kill). It generates over 60 kilowatts of energy, with upgrades reaching 120 kilowatts. The test zapped an aerial drone, confirming operational capability. Lasers offer a cheaper alternative to missiles, crucial in regions facing drone and missile threats. Challenges include power supply, weather conditions, and system integration. The Navy plans to expand laser weapons, aiming for cost-effective and efficient defense.

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Russia has offered India the R-37M missile, one of the world’s best air-to-air missiles. It was developed by Russia. The R-37M is designed to target enemy fighter jets and drones beyond visual range (BVR). It evolved from the R-33 missile and targets high-value platforms like tanker aircraft. Its guidance system includes inertial navigation, radar homing, and semi-active radar for the terminal phase. The missile has a range of 300-400 km and speeds up to Mach 6, making it highly effective for long-range interception.

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IIT-Madras and ISRO developed and successfully booted the SHAKTI-based semiconductor chip, IRIS (Indigenous RISCV Controller for Space Applications). SHAKTI systems use RISC-V (reduced instruction set computer five), an open-source Instruction Set Architecture (ISA), for custom processor design. The project is backed by the Ministry of Electronics and IT under the Digital India RISC-V (DIRV) initiative. The goal is to promote indigenous microprocessor-based products with top security and transparency. IRIS is a significant step toward India’s self-reliance in semiconductor technology, especially for space applications.

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The European Space Agency’s (ESA) Euclid space telescope discovered a rare Einstein ring around the galaxy NGC 6505. NGC 6505 is an elliptical galaxy located 590 million light-years away in the Draco constellation. The discovery is considered extraordinary, especially for Euclid’s early data. An Einstein ring is a circular light ring formed due to gravitational lensing by a galaxy, dark matter, or a galaxy cluster.

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Uganda and WHO confirmed an outbreak of Sudan Virus Disease (SVD). It is a viral hemorrhagic fever, related to Ebola, caused by the Sudan virus (SUDV). It was first identified in Sudan in 1976. It exists in animal reservoirs in the region. It has a high fatality rate and spreads through direct contact with bodily fluids or contaminated surfaces. Symptoms start with fever, fatigue, and sore throat, followed by vomiting, diarrhea, rash, and bleeding. There are no approved treatments or vaccines, but early supportive care improves survival chances.

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Maharashtra’s state minister is suffering from Bell’s Palsy, a condition causing temporary facial paralysis. It results from inflammation or irritation of the facial nerve (seventh cranial nerve) controlling facial muscles. It is often linked to viral infections, but the cause is usually unknown (idiopathic). It can affect anyone, but is more common in adults. Symptoms include facial drooping, difficulty with facial expressions, drooling, and issues with closing the eyelid or smiling.

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NASA plans to launch the SPHEREx telescope aboard a SpaceX Falcon 9 rocket from Vandenberg Space Force Base, California. SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) is a megaphone-shaped space telescope with a 2-year mission. It will map the universe using optical and infrared cosmic light. It will study cosmic inflation, which occurred 14 billion years ago when the universe expanded faster than light. It will analyze galaxy formation, cosmic evolution, and life-forming molecules in the Milky Way. It will use spectroscopic imaging to map 450 million galaxies in 3D. It will complement the work of the James Webb and Hubble telescopes.

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A study suggests Mars’ red color may be due to the iron-containing mineral ferrihydrite. Ferrihydrite is a poorly crystalline nanomineral made of 20% (FeO₄) and 80% (FeO₆) polyhedra. It forms through rapid oxidation and hydrolysis and exists in a disordered structure. It is an initial corrosion product of iron, leading to goethite and hematite formation. Found in soils, weathered rocks, and around iron-rich springs, especially with iron-metabolizing bacteria. It traps water, protects organic molecules, and forms rapidly in cool water. Present in meteorites as a pre-terrestrial weathering product.