Science & Technology Current Affairs MCQs

Notes:
The Technology Development Board (TDB), under the Department of Science and Technology (DST), has announced financial support for India’s first indigenous thrombectomy device. This support aims to improve stroke care by promoting homegrown medical technology. A thrombectomy is a medical procedure to remove blood clots from arteries or veins. These clots, called thrombi, can block blood flow and damage tissues or organs. Thrombectomy helps restore proper blood circulation and prevents serious health risks.

Notes:
Scientists using the Cosmology Large Angular Scale Surveyor (CLASS) telescope have detected a faint 13-billion-year-old microwave signal. The Cosmology Large Angular Scale Surveyor (CLASS) telescope is located in Chile’s Atacama Desert. The signal comes from the Cosmic Dawn, the era when the first stars, black holes, and galaxies formed. Cosmic Dawn occurred between 50 million and one billion years after the Big Bang. This discovery helps scientists understand how early stars affected the universe’s structure and temperature. The recent detection gives valuable clues about the universe’s formation and the role of early cosmic objects.

Notes:
Recently, India’s first agentic Artificial Intelligence (AI) named Kruti was launched by the startup Krutrim. It is a next-generation Generative AI (GenAI) tool that goes beyond just providing information. Kruti can act independently to manage complex tasks, make decisions, and solve problems for users and organizations. It uses advanced reasoning and step-by-step planning to handle multi-layered challenges without constant human input. It processes large amounts of data from various sources to create strategies and complete tasks on its own.

Notes:
Recently, the Ministry of Defence announced that scientists from the Indian Institute of Technology (IIT) Delhi and the Defence Research and Development Organisation (DRDO) successfully demonstrated quantum communication over more than 1 km in free space. Quantum communication is a super secure method of sending information using tiny particles like photons. It uses principles of quantum physics, especially entanglement, to make communication channels tamper-proof. If someone tries to intercept the photons, the disturbance will be detected, revealing the breach. This makes quantum communication highly valuable for defence and national security.

Notes:
Recently, the United States Food and Drug Administration (FDA) approved Lenacapavir (LEN), the most advanced medicine yet for HIV prevention. Lenacapavir is an antiretroviral drug used as pre-exposure prophylaxis or PrEP for people who are HIV-negative but at risk. PrEP stands for Pre-Exposure Prophylaxis, a method to prevent HIV infection before exposure. Lenacapavir is taken as an injection just twice a year, making it easier and more discreet than daily pills. It is developed by Gilead Sciences and sold under the brand name Yeztugo.

Notes:
Recently, Google DeepMind launched a new Artificial Intelligence model called AlphaGenome. AlphaGenome aims to predict accurately how individual mutations in human Deoxyribonucleic Acid (DNA) affect their functions and impact human health. It is built on DeepMind’s earlier genomics model named Enformer and works alongside AlphaMissense, which focuses on classifying the effects of variants in protein-coding regions. The model can analyze very long DNA sequences up to one million base pairs and generate highly detailed predictions.

Notes:
Recently, the Union government ordered fast-tracking of 52 surveillance satellites under the Space-Based Surveillance-III (SBS-III) programme. The SBS-III was approved in October 2023 by the Cabinet Committee on Security led by the Prime Minister. It plans 21 satellites by Indian Space Research Organisation and 31 by private companies. The first launch is due by April 2026, with the full network ready by 2029. The Defence Space Agency under Integrated Defence Staff leads this project and coordinates with Indian Space Research Organisation, Defence Research and Development Organisation, and the armed forces for space security.

Notes:
Recently, scientists at the Indian Institute of Science developed a glowing paper sensor to detect liver cancer. The sensor uses the green glow of Terbium to identify the enzyme beta-glucuronidase, which is a key biomarker for liver cancer. Terbium is a rare-earth metal belonging to the lanthanide series of the periodic table. It appears as a soft, silvery metal. Terbium is recovered from minerals like monazite and bastnaesite, and also from euxenite containing more than 1% terbium. It is used in solid-state devices and low-energy lightbulbs.

Notes:
Recently, Orbiting Now reported about 12,952 satellites are orbiting Earth, with 145 launched in 2025 so far. These satellites operate in Geostationary Orbit (GEO), Medium Earth Orbit (MEO), and Low Earth Orbit (LEO). The United States ranks first with 8,530 satellites. Russia ranks second with 1,559 satellites. China is third with 906 satellites. India ranks seventh with 136 satellites, including 22 in LEO and 32 in GEO, plus deep space missions like Chandrayaan-2 Orbiter and Aditya-L1. India plans to add 100-150 new satellites in three years for navigation, communication, observation, and national security.

Notes:
Recently, a deadly accident occurred at the pharma unit of Sigachi Industries in Hyderabad, raising the death toll to 36. The unit manufactures Microcrystalline Cellulose (MCC). Microcrystalline Cellulose (MCC) is a free-flowing powder extracted from refined wood pulp. It is inert, nontoxic, fiber-rich, chewable, and not absorbed during digestion. Wood is the main source of pharmaceutical MCC, with cellulose chains bound by polymers and hydrogen bonds.