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...
Category: Science & Tech
Africa study catches ‘high-flying’ mosquitoes spreading pathogens
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 long distances when infected people or animals travel. But there’s another possible route: some mosquitoes regularly fly high above the ground and get carried by winds for...
Science quiz: Giants on whose shoulders Newton stood
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...
Why do we get goosebumps?
A: Goosebumps, scientifically known as piloerection, occur when tiny muscles called arrector pili contract at the base of hair follicles. This pulls the hairs upright, creating the little harmless bumps on the skin. The response is controlled by the sympathetic nervous system, a branch of the autonomic nervous system that automatically regulates involuntary bodily reactions....
Did an ancient Vaigai flood contribute to Keezhadi’s abandonment?
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...
Success of LVM-3 mission reinforces India’s growing role in global commercial launch market: PM Modi
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 success of the heavy-lift LVM3 rocket also reinforced India’s...
BlueBird Block-2 mission: ISRO launches LVM3-M6 rocket
The Indian Space Research Organisation launched the LVM3-M6 rocket with the BlueBird Block-2 mission spacecraft on Wednesday (December 24, 2025) from the Satish Dhawan Space Center in Sriharikota. The mission is being undertaken as part of the commercial agreement signed between NewSpace India Ltd (NSIL) and US-based AST SpaceMobile (AST and Science, LLC). NewSpace India...
BlueBird Block-2 mission: ISRO successfully launches LVM3-M6 rocket
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 BlueBird Block-2 satellite into Low Earth Orbit about 15 minutes after lift off....
Why does yawning cause watery eyes?
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 is a tissue called the lacrimal gland. These glands produce water and...
Countdown for launch of ISRO’s Bluebird Block-2 Mission begins in Sriharikota
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 23, 2025), ISRO said. In a dedicated commercial mission, ISRO is scheduled to launch the Bluebird Block-2 spacecraft on board its heavy lift launch vehicle LVM3-M6 at 8.54 a.m. from the...
