Daily Current Affairs Quiz: December 5, 2025

Notes:
More than 1,500 academics protested in Kolkata against the Central government’s plan to repeal the Indian Statistical Institute (ISI) Act, 1959. The Indian Statistical Institute, founded by Professor Prasanta Chandra (P.C.) Mahalanobis on 17 December 1931 in Kolkata, is India’s key centre for statistical research, education, and training. The Act applies to ISI, its governing body, staff, and students, and grants autonomy to support its national role. The Act declared ISI an institution of national importance under the Ministry of Statistics and Programme Implementation (MoSPI).

Notes:
A Rainbow Water Snake (Enhydris enhydris) was photographed for the first time in Uttar Pradesh in the buffer of Dudhwa Tiger Reserve (DTR), proving the area’s rich ecology. The 35 cm snake was slightly inactive due to ecdysis (skin shedding) and was safely released after minimal handling and measurement. The sighting highlights Terai ecosystem diversity; six new species have been reported from Uttar Pradesh in the past two years. Dudhwa Tiger Reserve is located on the Indo-Nepal border in Lakhimpur-Kheri district, Uttar Pradesh.

Notes:
The Ebola outbreak in the Democratic Republic of Congo (DRC) is declared over after 42 days without new cases, confirmed by Democratic Republic of Congo (DRC) health officials and the World Health Organization (WHO). Ebola, caused by orthoebolaviruses, first discovered in 1976 in DRC near the Ebola River, leads to severe hemorrhagic fever with internal bleeding. It spreads from wild animals like fruit bats and non-human primates, and among humans through direct contact with infected body fluids, not through air.

Notes:
Researchers at National Centre for Radio Astrophysics – Tata Institute of Fundamental Research (NCRA–TIFR), Pune, discovered a new spiral galaxy named Alaknanda. It lies 12 billion light years away and shows a perfect spiral structure. The name comes from the Alaknanda River and the Hindi word for the Milky Way. The galaxy spans 30,000 light years, with two clear spiral arms around a bright central bulge. It forms stars rapidly, producing 60 solar masses per year. It resembles a young Milky Way, formed when our galaxy was only 10% of its current age. The discovery was made using National Aeronautics and Space Administration (NASA)’s James Webb Space Telescope (JWST).

Notes:
The Indian Navy announced that INS Aridhaman, India’s third Nuclear-Powered Ballistic Missile Submarine (SSBN), will soon be inducted. It is the second submarine of the Arihant class, built under the Advanced Technology Vessel (ATV) project at the Ship Building Centre, Visakhapatnam. It has a displacement of 6,000 tonnes on surface and 7,000 tonnes submerged, powered by an 83 Megawatt (MW) pressurized water reactor from Bhabha Atomic Research Centre (BARC). INS Arighaat is India’s second indigenously built Nuclear-Powered Ballistic Missile Submarine (SSBN), following the first SSBN INS Arihant.