Science & Technology Current Affairs MCQs

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Ukraine’s Security Service and Navy used a Neptune missile to strike an ammunition depot in Russia’s Rostov region. The R-360 Neptune is a Ukrainian-made subsonic cruise missile, originally designed for anti-ship use and later adapted for land attacks. It is based on the Russian Kh-35 missile, known as AS-20 Kayak by NATO. The missile entered service with the Ukrainian Navy in March 2021. It weighs 870 kg, is 5.05 meters long, and has a 400 km range. It travels at 900 km/h, with altitudes from 10 to 300 meters, dropping to 3 meters in the final phase.

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The ISRO mission that successfully germinated lobia seeds (also known as cowpea seeds) in space is called the “CROPS” experiment, which stands for “Compact Research Module for Orbital Plant Studies”. The seeds sprouted on the fourth day, with leaves visible by the fifth day, marking a major milestone in space research. The experiment aims to develop sustainable food sources for long-term space missions and test plant growth in microgravity and controlled environments. Success supports astronauts by enabling food growth, oxygen generation, and CO₂ recycling in space. It highlights India’s capability in managing complex life-support systems and contributes to global space farming initiatives.

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Chinese researchers developed a new voice-based method for early Alzheimer’s detection. The study was led by Prof. Li Hai at the Hefei Institutes of Physical Science, Chinese Academy of Sciences. Alzheimer’s disease is a brain condition that causes memory loss and cognitive decline. It affects thinking, learning, and organizing skills over time. It is the most common type of dementia, making up 60-80% of cases. The disease impacts brain regions responsible for thought, memory, and language.

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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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Maharashtra government has introduced Facial Recognition System (FRS) for entry into Mantralaya to enhance security and efficiency. Facial Recognition System (FRS) matches human faces from digital images or video frames with a database. It uses Artificial Intelligence (AI) with machine learning to improve accuracy. Computer Vision helps extract and analyze visual data from images and videos. Biometric Analysis identifies unique facial features for authentication. Convolutional Neural Networks (CNNs) are crucial for image recognition and feature extraction.

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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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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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ISRO has developed a 10-tonne vertical propellant mixer for solid motors, making India’s space sector more self-reliant. It is the world’s largest solid propellant mixing equipment, designed by Satish Dhawan Space Centre with Central Manufacturing Technology Institute. The mixer enhances productivity, quality, and efficiency in heavy solid motor production. It weighs around 150 tonnes and measures 5.4m in length, 3.3m in breadth, and 8.7m in height. It features hydrostatic-driven agitators and remote operation via PLC-based SCADA control. Solid propulsion is crucial for India’s space transportation, requiring precise mixing of hazardous ingredients.

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Kerala Government, in collaboration with Remidio, launched Nayanamritham 2.0, the world’s first AI-assisted chronic eye disease screening program. It builds on Nayanamritham 1.0, which focused on diabetic retinopathy screening. Optometrists use AI-enabled fundus cameras to classify cases as referable or non-referable for faster diagnoses. Now includes screening for glaucoma and age-related macular degeneration (AMD). Covers community health centers, taluk hospitals, and district hospitals. Aims to reduce preventable blindness, improve early detection, and enhance patient care. Kerala is the first government public health system globally to adopt AI for eye screening.

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Clinical neuroscientists have treated spinal muscular atrophy (SMA) in a baby before birth. SMA is a genetic disorder affecting motor neurons, causing progressive muscle weakness. It has five types (0-4), classified by age of onset and severity. Symptoms include muscle weakness, especially near the body’s center, but do not affect involuntary muscles like the heart. It is caused by SMN1 gene mutations, leading to motor neuron loss. It affects 1 in 10,000 births and is a leading genetic cause of infant deaths.