Health matters newsletter: The whole truth about weight-loss drugs

(In the weekly Health Matters newsletter, Ramya Kannan writes about getting to good health, and staying there. You can subscribe here to get the newsletter in your inbox.) Universally, a certain class of drugs have come to be superstars in recent times. The GLP-1 class of drugs, with their capacity for weight loss, though originally conceived and developed for diabetes, has suddenly become … Read more

Why the world needs to embrace neurodiversity with dignity and respect

To define autism solely in terms of challenges is a limited and incomplete view. Many autistic individuals possess remarkable abilities in fields like mathematics, music, memory, design, and pattern recognition. Photograph used for representational purposes only | Photo Credit: AP Every year on June 18, the world observes Autistic Pride Day, a day not of mourning or sympathy, … Read more

Towards empowerment: busting myths around vitiligo

Vitiligo is an autoimmune condition where the body’s immune system mistakenly attacks its own pigment-producing cells. File photograph In a world that idolises perfection, vitiligo tells a strikingly different story — one of resilience, uniqueness, and rediscovered beauty. Vitiligo is a skin condition where the body loses its pigment in patches, turning areas of the … Read more

Two existing drugs offer hope to cure Russell’s viper bites

Studies carried out in mice have demonstrated that two approved drugs — varespladib and marimastat — were effective in countering systemic and lethal effects of Russell’s viper (Daboia russelii) venom either individually or in combination. The two drugs were tested against Russell’s vipers venom sourced from different States across India. Russell’s vipers are responsible for … Read more

India’s Shubhanshu Shukla’s Axiom-4 mission put off to June 22

This photo provided by Axiom Space shows Shubhanshu Shukla from India, Peggy Whitson from the U.S., Slawosz Uznanski-Wisniewski from Poland and Tibor Kapu from Hungary. | Photo Credit: AP Indian astronaut Shubhanshu Shukla’s Axiom-4 mission to the International Space Station has been postponed to June 22, to allow NASA to evaluate the operations on the … Read more

What is IIT-Delhi’s quantum communications breakthrough? | Explained

IIT-Delhi and DRDO scientists have successfully demonstrate entanglement-based free-space quantum communication over 1 km. | Photo Credit: X.com/@SpokespersonMoD The story so far: On June 16, the Ministry of Defence said in a statement that IIT-Delhi scientists together with the Defence Research and Development Organisation (DRDO) demonstrated quantum communication over a distance of more than 1 … Read more

Hydraulic systems: their functioning and myriad applications

Ever observed cranes lifting heavy loads, excavators digging and scooping earth or the extension and retraction of landing gears in an aircraft? They all have one thing in common: they are driven by hydraulics. In all of them, the input power, from a combustion engine or an electric source, is converted into flexible mechanical power. … Read more

Rice reveals surprise ability to adapt to cold faster than evolution

In the early 1800s, ‘the theory of acquired characters’ was the most widely accepted explanation of evolution. Simply put, the theory stated that characteristics that an organism developed during its lifetime, through use, disuse or environmental influence, could be inherited by its offspring. The French naturalist Jean-Baptiste Lamarck formalised this idea in two laws in … Read more

All you need to know about: clinical trials

A sailor’s experiment In 1747, Scottish naval surgeon James Lind conducted what is now considered the world’s first controlled clinical trial aboard HMS Salisbury. Scurvy, a deadly disease causing bleeding gums and fatigue, was devastating for sailors. Unaware of vitamins, at that stage, Lind divided 12 affected sailors into six pairs, each receiving a different … Read more

DRDO, IIT-Delhi demonstrate free-space quantum secure communication over 1 km

DRDO and the Indian Institute of Technology Delhi (IIT-Delhi) successfully demonstrated Quantum Entanglement-based free-space Quantum Secure Communication over a 1 km range, marking a major breakthrough in quantum cybersecurity and secure communications, on June 16, 2025. | Photo Credit: X/@SpokespersonMoD via PTI Defence Research and Development Organisation (DRDO)-Industry-Academia Centre of Excellence (DIA-CoE) at IIT Delhi … Read more

Air India plane crash, Iran-Israel conflict, Trump-Musk feud, and more: The week in 5 charts

(1) Israel-Iran conflict On June 16, Iran and Israel exchanged missile fire for the fourth day after Israel struck several targets in Iran targeting its nuclear facilities and military a couple days earlier. Israel’s offensive also targeted Iranian military leaders and several nuclear scientists, killing top leaders in the military command structure. Israel-Iran conflict live … Read more

What is synthetic aperture radar?

An artist’s concept of the NISAR satellite in earth orbit. The radar antenna reflector is deployed on top. | Photo Credit: NASA Synthetic aperture radar (SAR) is a way to make sharp pictures even when it’s dark or cloudy. Instead of using visible light like a regular camera, SAR systems send out microwave pulses and … Read more

Humid phases once turned Arabian desert into a lush paradise: study

The region called Arabia sits at the heart of the earth’s driest deserts, stretching from the Sahara in the west to India’s Thar Desert in the east. It holds the distinction of being the largest biogeographical barrier on the planet. Over millennia, the arid conditions of the Saharo-Arabian Desert are expected to have prevented hominins … Read more

Axiom-4 mission: ISRO coordinating with Axiom Space to refresh time-sensitive experimental specimens

With the launch of Indian astronaut Group Captain Shubhanshu Shukla’s mission to the International Space Station (ISS) scheduled for June 19, the Indian Space Research Organisation (ISRO) is coordinating with Axiom Space to refresh time-sensitive experimental specimens. | Photo Credit: Reuters With the launch of Indian astronaut Group Captain Shubhanshu Shukla’s mission to the International … Read more

A whale tooth’s journey from the sea to a Copper Age pit

A pod of sperm whales. | Photo Credit: Wikimedia Commons When archaeologists were digging a new library site at Valencina de la Concepción in southwest Spain in 2018, they uncovered an unusual item: half of a large sperm-whale tooth lying in a 4,000-year-old pit. Because nothing like it had ever been reported from Copper-Age Iberia, … Read more

How a lung gene is linked to post-COVID symptoms as per genetics study 

More than four years since the COVID-19 pandemic began, the disease remains a global health concern — not because of new surges but because of what persists. Long COVID, or technically post-acute sequelae of SARS-CoV-2 infection (PASC), refers to symptoms that continue for weeks or months after the initial illness clears. These include fatigue, breathing … Read more

AI and biomanufacturing: can India’s policies match its ambitions?

India stands at a pivotal juncture in its quest to harness artificial intelligence (AI) for biotechnology innovation. On one hand, initiatives like the BioE3 Policy and the IndiaAI Mission reflect a bold vision to position the country as a global leader in AI-driven biomanufacturing and ethical AI development. On the other, fragmented regulations and lagging … Read more

Common molecule offers clue to making old muscles young again

Sarcopenia affects millions of people and contributes to frailty, slow recovery, and hospital readmissions in older adults. | Photo Credit: Alan Calvert/Unsplash As we age, it gets harder to recover from a fall, injury or even a tough workout because the body’s muscle-repair system starts to falter. Muscle stem cells (MuSCs), the in-house repair crew, … Read more

Axiom space flight tentatively scheduled for June 19 after repeated delays: Science Minister

Axiom-4 astronauts, commander Peggy Whitson of U.S., pilot Shubhanshu Shukla of India, mission specialist Slawosz Uznanski-Wisniewski of Poland and mission specialist Tibor Kapu of Hungary, are pictured on the countdown video clock, as the SpaceX Falcon 9 rocket stands at Launch Complex 39-A after a delay of its mission to the International Space Station, in … Read more

Is psychology’s replication crisis behind us?

To rebuild public trust, scholars at large have recommended research groups and journals adopt open-data policies and preregister studies. | Photo Credit: Dan Dimmock/Unsplash As if political broadsides weren’t enough to undermine public confidence in science, a deep-seated issue became apparent from within science itself in the 2010s: the replication crisis. Researchers began to realise … Read more

Cooking oils can help recover silver

Vegetable oils of the kinds used in our daily cuisine contain organic fatty acids like linolenic and oleic acids. | Photo Credit: Joyce Romero/Unsplash In families across the world, silver is used as a precious metal, next to gold. Happy occasions in most families are celebrated with gold and silver garlands and rings. Silver is, … Read more

Benchmarks in medicine: the promise and pitfalls of evaluating AI tools with mismatched yardsticks

In May 2024, OpenAI released HealthBench, a new benchmarking system to test the clinical capabilities of large language models (LLMs) such as ChatGPT. On the surface, this may sound like yet another technical update. But for the medical world, it marked an important moment—a quiet acknowledgement that our current ways of evaluating medical AI are … Read more

Axiom-4 mission carrying Shubhanshu Shukla now eyes June 19 lift-off

A Falcon 9 rocket stands at the pad before its upcoming launch of the Axiom-4 crewed mission to the International Space Station at Launch Complex 39-A in Cape Canaveral, Florida. | Photo Credit: Reuters The much-delayed Axiom-4 commercial mission to the International Space Station, carrying Indian astronaut Shubhanshu Shukla and three others, is now targeting … Read more

What is soft matter? – The Hindu

Soft materials’ behaviour is on the border between solids and liquids. | Photo Credit: Shali/Unsplash Soft matter is the branch of science that studies materials that can be shaped, stretched, squished or flowed by applying small forces. Everyday examples include curd, toothpaste, shampoo, soap bubbles, and living cells. Unlike hard crystals like quartz or steel, … Read more