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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 “Did an ancient Vaigai flood contribute to Keezhadi’s abandonment?” »
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…
Video grab of ISRO launching the LVM3-M6 rocket with the BlueBird Block-2 mission The Indian Space Research Organisation’s (ISRO) successfully launched the Launch Vehicle Mark 3 (LVM3) with the BlueBird Block-2 satellite on Wednesday (December 24, 2025) morning, from the second launch pad of the Satish Dhawan Space Centre in Sriharikota. The LVM3-M6 placed the…
Read More “BlueBird Block-2 mission: ISRO successfully launches LVM3-M6 rocket” »
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…
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 “Countdown for launch of ISRO’s Bluebird Block-2 Mission begins in Sriharikota” »
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 “How are we protecting astronauts from deadly space debris?” »
Planarian flatworms are small, unassuming creatures with an astonishing talent. Cut one into pieces, and each fragment can regrow a complete animal. This seemingly magical ability comes from their prolific stem cells, known as neoblasts, which can produce every tissue in the body. In most animals, such regenerative stem cells grow under the care of…
Read More “In axolotls and flatworms, regeneration is a body-wide choreograph” »
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 “National Mathematics Day and the double life of Jantar Mantar” »
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 “Why do students fear math? | National Mathematics Day” »
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 “NASA loses contact with MAVEN, which reached Mars with Mangalyaan” »