Current Affairs Quiz - May 2025

Notes:
The Subaru Telescope in Hawaii recently used the Hyper Suprime-Cam to carry out a deep sky survey from the University of Tokyo. It reported a Sigma Eight (S8) value of 0.747, which matches earlier results from gravitational lensing studies. Sigma Eight (S8) is a key measure in cosmology that shows how matter is clustered or “clumpy” across the universe on a scale of 26 million light-years. It tells scientists how much visible and dark matter is gathered in different parts of space. This finding helps us understand how the universe evolved from a smooth early state after the Big Bang.

Notes:
A massive explosion recently hit Iran’s Shahid Rajaee Port in Bandar Abbas, causing a huge fire and leading to many deaths and injuries. The blast is suspected to have been caused by sodium perchlorate, a chemical used in ballistic missile propulsion. Shahid Rajaee Port is Iran’s largest and most advanced commercial port. It is located near the Strait of Hormuz, a vital route through which about 26% of the world’s oil is transported. The port manages 85% of Iran’s container cargo, 52% of its oil trade, and over half of its total maritime cargo. It lies along the International North-South Transport Corridor (INSTC), linking the Indian Ocean and Persian Gulf to the Caspian Sea, Russia, and Northern Europe.

Notes:
Years of efforts by Jharkhand forest officials have succeeded with Jaigir becoming the first village to be fully relocated outside the core area of Palamu Tiger Reserve (PTR). Palamu Tiger Reserve is located in the western part of the Chotanagpur plateau and spreads across Latehar and Garhwa districts in Jharkhand. It covers a total area of 1,014 square kilometers, with 414 square kilometers as core and 600 square kilometers as buffer. It was among the first nine reserves established under ‘Project Tiger’, a conservation program launched in 1973 by the Government of India.

Notes:
Satwiksairaj Rankireddy and Chirag Shetty recently received the Major Dhyan Chand Khel Ratna Award for their outstanding achievements in badminton. The pair reached the No. 1 rank in the Badminton World Federation rankings in 2023 and won the Asian Games gold medal in Hangzhou. The Major Dhyan Chand Khel Ratna Award was originally established as the Rajiv Gandhi Khel Ratna in 1991–92 and renamed in 2021. It is India’s highest sporting honour, given for the most exceptional performance by a sportsperson over the last four years. Only performances in recognized international events are eligible for consideration. The award includes a ₹25 lakh cash prize, a medal, and a certificate of honour, with typically one award given each year.

Notes:
Nepal has introduced a new draft law to allow only experienced climbers, who have scaled peaks above 7,000 metres, to attempt Mount Everest. This step comes in response to rising deaths, overcrowding, and environmental damage on the world’s tallest mountain. By restricting access, Nepal hopes to improve climber safety and promote responsible tourism. The law aims to ensure that only skilled mountaineers with proven high-altitude experience undertake such risky expeditions. The move also supports environmental conservation by addressing waste buildup and uncontrolled tourist flow in the fragile Everest ecosystem. This reflects Nepal’s growing commitment to sustainable mountaineering practices.

Notes:
Researchers at the Indian Institute of Space Science and Technology (IIST) have developed a 3D computational model to study thermoregulation in space. It shows that microgravity consistently increases human core body temperature, which is important for long-duration space missions. Microgravity is a condition of near-weightlessness experienced when objects are in free fall around Earth, not the absence of gravity. In microgravity, normal body functions like heat regulation are altered due to changes in blood flow and metabolism. The IIST model includes sweating, shivering, clothing, and organ heat to simulate real human conditions in space.

Notes:
In a major step toward digital transformation, Chhattisgarh Chief Minister laid the foundation for India’s first Artificial Intelligence-based Data Center Park in Raipur. The facility will start with a five megawatt capacity and aims to grow to 150 megawatts. A 2.7-hectare area is being developed as a Special Economic Zone (SEZ) focused on Artificial Intelligence (AI) services. The project will see an investment of Rs 2,000 crore as it expands. The center will support green, energy-efficient technologies for sustainable operations. It will serve sectors like AI, Financial Technology (FinTech), Health Technology (HealthTech), defense, and data analytics. The infrastructure will use Graphics Processing Unit (GPU)-based systems for real-time data processing, streaming, and analytics.

Notes:
Defence Research and Development Organisation (DRDO) has successfully conducted the first flight trial of the Stratospheric Airship Platform in Sheopur, Madhya Pradesh. The platform was developed by DRDO’s Aerial Delivery Research and Development Establishment (ADRDE) based in Agra. The airship carried an instrumental payload and reached a high altitude of about 17 kilometres. The total flight lasted 62 minutes and helped gather important data through onboard sensors. This data will help in building accurate simulation models for future high-altitude missions. The test also checked the envelope pressure control and emergency deflation systems, and the airship was safely recovered.

Notes:
Lawrence Wong has been elected as Prime Minister of Singapore. He is from the People’s Action Party (PAP), which has ruled Singapore since independence. Wong is an economist and served as the Finance Minister since 2021 before becoming Prime Minister. In the 2025 general elections, under his leadership, PAP won 87 out of 97 parliamentary seats. This included 82 seats through voting and 5 uncontested. The PAP’s popular vote increased to 65.6 percent, showing strong public support.

Notes:
A recent study in the New England Journal of Medicine found that a weekly dose of semaglutide shows strong results in treating Metabolic Dysfunction-Associated Steatohepatitis (MASH). Semaglutide is a Glucagon-Like Peptide-1 (GLP-1) receptor agonist, first developed to treat Type 2 diabetes. It is the main ingredient in medicines like Ozempic, used for diabetes, and Wegovy, used for weight loss. MASH is a severe type of fatty liver disease caused by metabolic problems and not by alcohol. It involves fat buildup, inflammation, and liver scarring, and is linked to obesity, diabetes, and overnutrition. If not treated, MASH can lead to cirrhosis or liver failure.