Free bus schemes help, but rural India pays more to travel

The latest World Bank report has commended India for pulling 171 million people out of poverty. Using the formulation of $2.15 a day as the poverty line, it has said that extreme poverty fell from 16.2% in 2011-12 to 2.3% in 2022-23. However, how has the consumption basket of India changed? The Household Consumption Expenditure … Read more

A random number generator using quantum physics and a blockchain

In September 2013, whistleblower Edward Snowden revealed that American and British intelligence agencies had successfully cracked much of the online encryption internet users used to keep their personal data private. Snowden’s solution appeared ironic to many: to adopt end-to-end encryption en masse, rendering mass surveillance prohibitively expensive and cumbersome. In end-to-end encryption, an algorithm converts … Read more

Why are parachutes shaped like that?

A parachute lets you float in the sky, gazing at the vast lands below, before gently landing back on your feet. For adventure lovers, it’s an adrenaline rush and a moment to cherish forever. The purpose: Slow and steady A parachute’s main purpose is simple but life-saving: it slows you down in mid-air. When someone … Read more

Seeds of seabuckthorn, Himalayan buckwheat part of experiment on ISS

A SpaceX Falcon Nine rocket lifts off from Launch Complex 39A carrying NASA’s Crew-11 mission to the International Space Station, in Cape Canaveral, Florida, U.S., August 1, 2025. | Photo Credit: Reuters Seeds of seabuckthorn and buckwheat grown in the cold desert of Ladakh are part of the experiments on board the International Space Station … Read more

Tropical rain destabilises oceans only when it falls lightly: study

Researchers have found a ‘cold rain zone’ in the western Pacific and Indian Oceans where rain was associated with more heat loss. | Photo Credit: Hassan Rafhan/Unsplash When it rains over the ocean, does it make the surface water more buoyant? Scientists have long assumed so because rainwater is fresh and freshwater is lighter than … Read more

World’s highest bird death rates at Thar Desert wind farms

In the first half of 2025, India added around 3.5 GW to the wind sector – an 82% year-on-year growth – taking the total installed capacity to 51.3 GW. Even so, India’s wind power remains largely untapped. According to the National Institute of Wind Energy, India’s gross wind power potential is 1163.9 GW at 150 … Read more

Simpler tests could slash biosimilar costs, widen patient access

A supervisor inspects pre-filled syringes of a biosimilar of Adalimumab at a Zydus Group facility in Changodar, Gujarat, 2014. The biosimilar is used to treat rheumatoid arthritis. | Photo Credit: AFP Most of the drugs that we consume are called ‘small molecule drugs’. Their chemical structure is reasonably simple. Disprin, for instance, has a molecular … Read more

The first undersea voyage to the North Pole

Search for power The concept of underwater transport is deeply embedded in human history. It wasn’t until the 17th Century, however, that the first practical submarine was built. And it was only during World War I that submarines became a huge factor in naval warfare.  Even in the decades after World War I, the submarines … Read more

All about India-U.S. trade: Infographics

Prime Minister Narendra Modi and US President Donald Trump deliver a joint press statement after their meeting at the White House, in Washington, DC on Feb. 13, 2025. | Photo Credit: ANI U.S. President Donald Trump on Thursday (July 31, 2025) announced a 25% tariff on Indian imports into the U.S., effective August 1, following … Read more

Scientists use AI-designed proteins to generate immune cells 

A colourised scanning electron micrograph of a T cell. | Photo Credit: NIAID A team of Harvard scientists has used artificial intelligence (AI), in the form of AI-designed proteins, to generate large numbers of immune cells and enhance immunity against diseases ranging from cancer to viral infections, a new research paper published in Cell said. … Read more

How deep in the ocean does life exist?

Deep-sea animals called giant tubeworms rely on hydrothermal vents to survive. | Photo Credit: US NOAA A: Life often finds a way to survive even in extreme conditions. For example, in 1960, when Don Walsh and Jacques Piccard explored the bottom of the Challenger Deep in the Mariana Trench, they spotted a small fish at … Read more

Share of AC berths doubled in last decade in long-distance trains

Indian Railways is keen on increasing the number of AC three-tier coaches in long-distance trains In the last decade, the share of air-conditioned (AC) berths/seats in non-suburban trains (long-distance trains) has doubled, while the share of non-AC berths/seats has declined considerably in India. In parallel, the share of passengers who travelled in AC coaches has … Read more

After NISAR, ISRO gearing up for next U.S. collaboration with BlueBird communications satellite launch

ISRO’s launch vehicle GSLV-F16 carrying the NISAR earth observation satellite lifts off from the launch pad at the Satish Dhawan Space Centre, in Sriharikota, Andhra Pradesh, on July 30, 2025. | Photo Credit: PTI The Indian Space Research Organisation (ISRO) is hoping to launch the Block 2 BlueBird communications satellite, developed by the U.S.-based AST … Read more

Failure analysis on PSLV-C61/EOS-09 mission completed, report to be submitted to PM soon: ISRO chairman V. Narayanan

ISRO chairman V. Narayanan (file) | Photo Credit: NASA via PTI Photo The failure analysis committee has pinpointed the problem that caused the failure of the Polar Satellite Launch Vehicle-C61/Earth Observation Satellite-09 (PSLV-C61/EOS-09) mission in May 2025, V. Narayanan, chairman, Indian Space Research Organisation (ISRO), said on Friday (August 1, 2025). The analysis is over … Read more

NISAR mission enters critical 90-day commissioning phase

ISRO’s launch vehicle GSLV-F16 carrying the NISAR earth observation satellite lifts off from the launch pad at the Satish Dhawan Space Centre, in Sriharikota. | Photo Credit: PTI The historic NISAR mission, a landmark collaboration between NASA and ISRO, has entered its crucial 90-day commissioning phase, during which scientists will carry out rigorous checks, calibrations … Read more

Malaria’s new frontlines: vaccines, innovation, and the Indian endgame

In 2023, malaria infected nearly 294 million people and killed close to 6,00,000. Despite early victories in the fight against malaria, global progress has stalled in recent years. The parasites are adapting, becoming resistant to treatments, while mosquitoes are surviving insecticides. It’s a shape-shifting enemy—and the old tools are slipping. India has reduced its malaria … Read more

NISAR mission will showcase Indian space engineering on global scale: ex-ISRO scientist

Radha Krishna Kavuluru highlighted the mission’s importance as ISRO’s first major partnership with NASA for an Earth observation satellite. File Photo: X/@iamkrishradha The NISAR mission, a collaborative effort between ISRO and NASA, will demonstrate Indian space engineering capabilities for Earth observation on a global scale, a top scientist has said. The NISAR (NASA-ISRO Synthetic … Read more

‘Station’ in Ladakh begins research to simulate life on Moon, Mars

To prepare for possible manned space missions to the Moon and potentially Mars, Protoplanet, a Bengaluru-based company involved in space science popularisation, launched human outer planet exploration (HOPE) in Tso Kar, Ladakh, according to a statement from the company. HOPE is intended to be a research station where selected ‘crew’ — beginning August 1 — … Read more

What data shows about the SIR exercise conducted in Bihar

This article forms a part of the Data Point newsletter curated by The Hindu’s Data team. To get the newsletter in your inbox, subscribe here As the Supreme Court is hearing a batch of pleas challenging the Election Commission of India’s (ECI) decision to undertake the Special Intensive Revision (SIR) exercise of electoral rolls ahead of … Read more

Can gut microbes help flush out forever chemicals in your body? Here is what experts have to say

Could your gut help clear out toxic “forever chemicals”? Scientists are beginning to explore the possibility that certain gut bacteria might help remove per- and polyfluoroalkyl substances (PFAS) – colloquially known as forever chemicals – a class of chemicals linked to cancer and other health harms from the body. A study published in Nature Microbiology … Read more

How does the Indian harmonium produce its lively music?

The Indian portable harmonium is a close cousin of the larger foot-pumped organs once found in European churches and homes. It’s a wooden box roughly the size of a small suitcase. You sit on the floor behind it and pump a pair of bellows with one hand and play piano-like keys with the other. All these … Read more

GSLV-F16 with NISAR satellite onboard lifts off from Sriharikota

GSLV-F16 rocket carrying the NISAR satellite lifts off from the Satish Dhawan Space Centre (SDSC), in Sriharikota, Andhra Pradesh, on July 30, 2025. Screengrab: X/@isro The Geosynchronous Satellite Launch Vehicle (GSLV-F16) with the NASA-ISRO Synthetic Aperture Radar (NISAR) satellite successfully lifted off from the Satish Dhawan Space Centre in Sriharikota on (Wednesday (July 30, 2025). … Read more

GSLV-F16 with NISAR satellite onboard lifts off from Sriharikota

GSLV-F16 rocket carrying the NISAR satellite lifts off from the Satish Dhawan Space Centre (SDSC), in Sriharikota, Andhra Pradesh, on July 30, 2025. Screengrab: X/@isro The Geosynchronous Satellite Launch Vehicle (GSLV-F16) with the NASA-ISRO Synthetic Aperture Radar (NISAR) satellite successfully lifted off from the Satish Dhawan Space Centre in Sriharikota on (Wednesday (July 30, 2025). … Read more

Quiz: Lands kept apart, or together, by a sliver

Quiz: Lands kept apart, or together, by a sliver 1 / 6 | Clockwise from top left, these are the cities of Auckland, Manila, Seattle, and Madison. What do they have in common in line with this quiz’s theme? 2 / 6 | Name the narrow waterway that separates Europe from Asia and which has … Read more