A topographic map of the Indian Ocean on November 27, 2025, as Cyclone Ditwah approaches Sri Lanka and southern India | Photo Credit: FrankRamspott The cyclonic disturbances over the North Indian Ocean, which include the Arabian Sea, the Bay of Bengal, and the land area in between, have changed drastically over the last century. Broadly, … Read more
DNA inside human cells is not free-floating. Instead, it is tightly wrapped around small protein units forming a long chain, with DNA looping around each unit before moving on to the next. This DNA-protein complex is called chromatin and allows nearly 2 m of genetic material to fit inside a nucleus only a few micrometres … Read more
Scientists have suspected for decades that high-flying mosquitoes could move pathogens far from where the mosquitoes first took an infected blood meal. | Photo Credit: Wolfgang Hasselmann/Unsplash Mosquitoes spread diseases such as malaria and dengue, and these diseases affect billions of people worldwide. Many public health plans assume that pathogens borne by mosquitoes spread over … Read more
Watch: Tamil Nadu SIR: Eight unusual patterns in the deleted electors list: Data Point
Science quiz: Giants on whose shoulders Newton stood 1 / 5 | The work of X on falling bodies and the idea that an object in motion tends to stay in motion set the stage for Newton’s laws of motion. X is also known for trying mathematics to physical measurements in a new way. Newton … Read more
Along the Vaigai river in southern Tamil Nadu, archaeologists have been excavating an old settlement at Keezhadi. They have already found brick walls, channels that look like drains or small canals, floors made of fine clay, and many pieces of pottery. These finds matter because Tamil poems from the Sangam period talk about busy towns … Read more
Prime Minister Narendra Modi. File | Photo Credit: PTI Prime Minister Narendra Modi on Wednesday (December 24, 2025) congratulated Indian Space Research Organisation (ISRO) for placing the heaviest satellite in orbit from India using the LVM3 rocket and strengthening the foundation for future missions such as the Gaganyaan. The Prime Minister also said that the … Read more
Video grab of ISRO launching the LVM3-M6 rocket with the BlueBird Block-2 mission The Indian Space Research Organisation’s (ISRO) Launch Vehicle Mark 3 (LVM3) on Wednesday (December 24, 2025) morning, with the BlueBird Block-2 satellite, lifted off from the second launch pad of the Satish Dhawan Space Centre in Sriharikota. The LVM3-M6 is expected to … Read more
Doping is the used of banned athletic performance enhancing drug by athlete in competitive sport. Medical test. | Photo Credit: Md Babul Hosen India has recorded the highest number of doping offenders globally for the third consecutive year, according to the latest World Anti-Doping Agency’s (WADA) report. According to the WADA’s 2024 report, India recorded … Read more
Yawning has important functions for the body. | Photo Credit: Tim Bish/Unsplash A: You’ve just had a heavy meal and now you have to sit through a dull lecture. Soon you’re feeling drowsy. You yawn, and your eyes water. This happens because yawning affects the muscles and glands around the eyes. Just above each eye … Read more
In this image posted on December 23, 2025, Indian Space Research Organisation’s LVM3M6 set to launch the BlueBird Block-2 spacecraft from Satish Dhawan Space Centre, Sriharikota. Photo: X/@isro via PTI Photo The 24-hour countdown for the launch of LVM3-M6 rocket, which will carry a new generation U.S. communication satellite commenced in Sriharikota on Tuesday (December … Read more
The story so far: Millions of naturally occurring Micrometeoroids and Orbital Debris (MMOD) orbit the earth, posing a constant threat to all spacecraft and space stations. The menace attracted global attention recently when a piece of debris struck the Chinese crewed vehicle Shenzhou-20, causing a minor crack in the window of its return capsule, rendering … Read more
In axolotls and flatworms, regeneration is a body-wide choreograph
According to organ utilisation data, 65 hearts and 86 lungs were utilised in 2025, accounting for 27.08% and 17.91% respectively. In 2024, 35.82% hearts and 16.61% lungs were utilised. Image used for representational purposes only | Photo Credit: R. Ashok From 2021 to 2025 (up until November 27), the number of major organ transplants rose … Read more
Sudan paramilitaries launched a large-scale drone attack in the east on Thursday (December 18, 2025), a military source told AFP, with strikes hitting a key power station, causing major outages and killing three. Since April 2023, Sudan’s army and the paramilitary Rapid Support Forces (RSF) have been locked in a conflict that has killed tens … Read more
Commemorating December 22 as National Mathematics Day invites memories of biographies, theorems, institutes, and prizes. But India also has mathematical places: built environments that render the mathematical act of measurement public. Jantar Mantar in New Delhi is one of them. It was commissioned by Sawai Jai Singh II and completed in 1724 as an architectural … Read more
The Draft Electoral Roll published on December 19 recorded about 97.3 lakh deletions in total | Photo Credit: L. Balachandar An analysis of the Chief Electoral Officer, Tamil Nadu’s polling station-level list of over 97 lakh deleted electors in Tamil Nadu reveals several anomalies that require closer examination. The analysis reveals eight distinct categories of … Read more
(1) Shooting in Australia kills 15 Two men opened fire on a celebratory gathering in Bondi Beach, Australia, killing at least 15 people on Sunday last week (December 14, 2025) in what was the bloodiest shootings in the country’s recent history. Around a 1,000 people had gathered near the beach for Hanukkah, a Jewish festival. … Read more
For many students, mathematics feels less like a subject and more like a verdict, you’re either “good at it” or you’re not. There’s no escape from maths in school, and for some, every class brings a familiar knot of anxiety rather than curiosity or confidence. You’re not imagining it: the fear is real, and it’s … Read more
A NASA illustration depicting the MAVEN spacecraft orbiting Mars. | Photo Credit: AP NASA has lost contact with its Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft, the Mars orbiter that has worked for more than a decade to study how the planet’s atmosphere is escaping into space. The spacecraft went silent in early December and … Read more
The Draft Electoral Roll published on December 19 recorded about 97.3 lakh deletions in total | Photo Credit: BALACHANDAR L An analysis of the Chief Electoral Officer, Tamil Nadu’s polling station-level list of over 97 lakh deleted electors in Tamil Nadu reveals several anomalies that require closer examination. The analysis reveals eight distinct categories of … Read more
The chilly waters of the Southern Ocean that surround Antarctica like a moat are among the least explored and least understood of all the world’s oceans. This is stark because we also know that this ocean plays an outsized role in regulating the earth’s climate with its moody currents and its tremendous ability to absorb … Read more
Sirisha K.V., has severe osteogenesis imperfecta, a genetic disorder causing brittle bones. The condition requires a person to help the 36-year-old out of a vehicle and into her wheelchair to go to her office in Chittoor, Andhra Pradesh. Since the disorder can cause bones to break easily she needs to be constantly careful while moving. … Read more
It’s holiday season and plans are in the air for travel, celebrations and get-togethers. It’s also a time when cheat days will abound and exercise may take a backseat. It’s important though to ensure that you come out the other side, well-rested and healthy too! So take the quiz and find out how much you … Read more
The device offers new hope to the 1.7 million Indians who suffer strokes each year, said Dileep Yavagal, professor of Neurology and Neurosurgery, University of Miami, who was part of the global trial. | Photo Credit: Getty Images/iStockphoto The indigenously developed Supernova stent retriever—approved in India using only domestic clinical trial data— is expected to … Read more
Targeting remission might represent a new approach to cardiovascular prevention, the authors wrote | Image used for representational purpose only | Photo Credit: MAHESH KUMAR A Bringing blood glucose to normal range through lifestyle changes could halve the risk of heart attack, heart failure and premature death among prediabetics, according to a study. Findings published … Read more
The LVM3-M6 Mission launch is scheduled on December 24, 2025 at 08:54 hrs IST from the Second Launch Pad (SLP), SDSC SHAR. Photo: X/@isro/ANI ISRO’s upcoming LVM3 M6 mission will carry the BlueBird Block-2 satellite into orbit on December 24, as part of a commercial deal with U.S.-based AST SpaceMobile. The historic mission will deploy … Read more
Union MoS Jitendra Singh speaks in the Lok Sabha during the ongoing Winter Session of the Parliament, in New Delhi. | Photo Credit: ANI The story so far: Parliament has brought into force the Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India (SHANTI) Act which repeals legislation that governs nuclear activity — the … Read more
