Science & Technology Current Affairs MCQs

Notes:
A new meat-eating dinosaur named Spinosaurus mirabilis was discovered in the Sahara Desert. Its fossils were found in Jengueb area of Niger in the central Sahara. It lived about 95 million years ago in a forested inland region with rivers. It is the second known species of Spinosaurus. The first species, Spinosaurus aegyptiacus, was discovered in 1915 in Egypt.

Notes:
The Defence Research and Development Organisation conducted a qualification-level load test of the Gaganyaan drogue parachute at the Rail Track Rocket Sled facility in Chandigarh. This marks a major milestone in India’s human spaceflight mission, Gaganyaan. The drogue parachute is a key part of the Crew Module deceleration system. It deploys during atmospheric re-entry to stabilize the module and reduce speed before the main parachutes open. It was jointly developed by the Indian Space Research Organisation and the Defence Research and Development Organisation.

Notes:
An indigenously developed 30 kiloWatt Wide Band Gap based Integrated Drive System for Electric Vehicles was launched by Ministry of Electronics and Information Technology in Chennai. It was developed by Centre for Development of Advanced Computing Thiruvananthapuram with Indian Institute of Technology Madras and Lucas TVS under National Mission on Power Electronics Technology. It was launched by the Secretary of Ministry of Electronics and Information Technology at IIT Madras. The 30 kiloWatt system suits electric passenger vehicles like compact cars and fleet mobility. It reduces import dependence on semiconductor-based Electric Vehicle powertrain systems.

Notes:
The World Health Organization (WHO) and the Pan American Health Organization (PAHO) have officially verified that Chile has eliminated Leprosy, also known as Hansen’s disease. With this achievement, Chile has become the first country in the Americas and the second country globally to be officially verified as having eliminated the disease. Leprosy was first recorded in Chile in the late 19th century, primarily on Rapa Nui (also known as Easter Island). The disease remained largely confined to the island, while mainland Chile experienced only occasional sporadic cases.

Notes:
Avataar is India’s first amphibious drone, launched on 5 March 2026 by AquaAirX Autonomous Systems. It can operate both in air and underwater, combining drone flight with submarine-like diving for surveillance. The project received ₹12.5 crore seed funding from Rainmatter. It has reached TRL-6 (Technology Readiness Level-6), meaning a working prototype tested in real environments. It is built with carbon fibre body and anti-corrosion coatings to resist saltwater damage.

Notes:
Researchers recently identified an unusual iron sulfate ferric hydroxysulfate in layered deposits near Valles Marineris using laboratory experiments and orbital data. Valles Marineris, also called Mariner Valley, is a vast system of interconnected canyons on Mars. It was discovered during the Mariner 9 mission in 1971. It is one of the largest canyon systems in the Solar System. Some canyon walls are fault scarps formed due to crustal movement linked to Tharsis Rise. Erosion also shaped the canyon, seen in deep gullies along the walls.

Notes:
CALM-Brain has been launched in Bengaluru as India’s first digital repository focused on brain structure and psychiatric disorders. It has been developed by researchers at the Rohini Nilekani Centre for Brain and Mind, which is a collaboration between NIMHANS (National Institute of Mental Health and Neurosciences) and NCBS (National Centre for Biological Sciences). The repository is built using data collected from Indian patients, making it highly relevant for understanding mental health conditions in the Indian population. It aims to support research in neuroscience and psychiatry, enabling better diagnosis, treatment, and understanding of brain disorders.

Notes:
As part of Gaganyaan mission, the Indian Space Research Organisation is conducting Mission MITRA (Mapping of Interoperable Traits and Response Assessment) in Leh from April 2 to April 9, 2026. Mission MITRA is a first-of-its-kind team behavioral study, developed jointly by ISRO and the Institute of Aerospace Medicine, aimed at evaluating crew safety and performance in human spaceflight. The study focuses on team communication, adaptability to stress, psychological resilience, and mutual support, which are critical for mission success. Leh’s high-altitude environment (approx 3,500 metres), hypoxia, low temperature, and isolation serve as a natural analog for spaceflight operations.

Notes:
Recent research shows PACE Satellite can detect nitrogen dioxide (NO₂) pollution at very fine scales, identifying emissions from individual factories and highways. This is a major advancement in air quality monitoring and environmental governance. PACE (Plankton, Aerosol, Cloud, and Ocean Ecosystem) is a NASA satellite mission. It was launched in 2024 into a Sun-synchronous orbit for consistent global observation. It provides hyperspectral coverage of Earth every 1–2 days. It improves climate studies by offering finer wavelength resolution than earlier satellites.

Notes:
Researchers from the University of Cambridge have developed a hafnium-oxide memristor, a brain-inspired nanodevice that can significantly reduce Artificial Intelligence (AI) energy consumption. A memristor (memory + resistor) is an electronic component whose resistance depends on past current flow, enabling it to “remember” previous electrical states. Unlike a conventional resistor, a memristor has variable resistance and retains its state even when the current is switched off. Memristors are nanoscale devices with low energy requirements and are commonly made using materials like titanium dioxide (TiO₂) between metal electrodes.