Paint me cool: scientists reveal roof coating that can reduce surface temperatures up to 6C on hot days

Sydney researchers commercialising a product they say can cool indoor spaces and will cost little more than standard premium paints

Australian scientists have developed roof coatings that can passively cool surfaces up to 6C below ambient temperature, as well as extract water from the atmosphere, which they say could reduce indoor temperatures during extreme heat events.

Heatwaves are becoming more intense, more frequent and more deadly due to human-caused global heating.

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A strange brew: the case of the man behind an audacious Scottish tea fraud

A charismatic, tweed-wearing grower from Perthshire falsely claimed to be able to create thriving tea plantations in Scotland. His elaborate deception took in luxury hotels, media outlets and tea growers across the country

With its large silver pouch, artistic label and delicate leaves, Dalreoch Scottish white tea might be expected to grace elegant cups with saucers, perhaps with a scone served on the side. Instead, it is nestled with an array of numbered polythene packets in a room just off a laboratory at the University of Aberdeen.

This is not an ordinary afternoon tea but evidence in a crime that science helped solve.

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Napoleon’s soldiers who died in Russian retreat had unexpected diseases, study finds

Analysis of DNA from teeth of troops buried in mass grave suggests soldiers had paratyphoid fever and relapsing fever

When Napoleon ordered his army to retreat from Russia in October 1812, disaster ensued. Starving, cold, exhausted and struggling with sickness, an estimated 300,000 soldiers died.

Researchers now say they have identified two unexpected diseases among soldiers who died in the retreat – paratyphoid fever and relapsing fever – which provide fresh insights into their plight.

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India trials Delhi cloud seeding to clean air in world’s most polluted city

Bharatiya Janata party launches first test flight as brown haze blankets city after Diwali – but experts decry ‘gimmick’

The Delhi regional government is trialling a cloud-seeding experiment to induce artificial rain, in an effort to clean the air in the world’s most polluted city.

The Bharatiya Janata party (BJP) has been proposing the use of cloud seeding as a way to bring Delhi’s air pollution under control since it was elected to lead the regional government this year.

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Elon Musk feuds with US transportation chief in social media posts: ‘2 digit IQ’

SpaceX owner said Sean Duffy was ‘trying to kill Nasa’ after acting head said agency would reopen contracts for Artemis mission

Elon Musk attacked Sean Duffy, the US secretary of transportation, on Tuesday in a series of posts on X, accusing him of trying to “kill NASA”, suggesting he should be fired and calling him “Sean Dummy”. The posts intensified a long-running feud between Duffy, who is also the acting head of Nasa, and Musk, whose company SpaceX is central to the US space program.

Musk’s tirade against Duffy followed a statement from the transportation secretary on Tuesday that Nasa would reopen contracts for the agency’s Artemis mission to land humans on the moon, which SpaceX had previously secured. Duffy said that SpaceX had fallen behind on its timelines. Duffy suggested the contract might go to another billionaire’s rocket company, Jeff Bezos’s Blue Origin.

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Anti-malaria funding cuts could lead to ‘deadliest resurgence ever’, study warns

Expected reduction in contributions by wealthy countries likely to cost millions of lives and billions in lost growth

Slashed contributions from wealthy countries to an anti-malaria fund could allow a resurgence of the disease, costing millions of lives and billions of pounds by the end of the decade, according to a new analysis.

The fight against malaria faces new threats, including extreme weather and humanitarian crises increasing the number of people exposed, and growing biological resistance to insecticides and drugs, the report warns.

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Smart jab can shrink head and neck cancer tumours within six weeks, trial finds

Triple-action therapy drug amivantamab could be given as an injection to help treat recurrent or metastatic cancers

Doctors have hailed “incredibly encouraging” trial results that show a triple-action smart jab can shrink tumours in head and neck cancer patients within six weeks.

Head and neck cancer is the world’s sixth most common form of the disease. If it spreads or comes back after standard treatment, patients may be offered immunotherapy and platinum chemotherapy. But if this fails, there is often little else doctors can do.

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Chen Ning Yang, Chinese-American physicist and Nobel laureate, dies at 103

Renowned 1957 Nobel prize winner worked on statistical mechanics and symmetry principles in elementary particle physics

Chen Ning Yang, one of the world’s most renowned physicists and a Nobel prize winner, died on Saturday in Beijing at the age of 103 after an illness, state media outlet Xinhua has reported.

Born in eastern China’s Hefei in Anhui province in 1922, Yang was a Chinese-American physicist who worked on statistical mechanics and symmetry principles in elementary particle physics.

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DNA from discarded straw leads to indictment of murder suspect after 41 years

Richard Bilodeau, 63, charged with two counts of murder in 1984 death of Theresa Fusco, 16, of Long Island

Four decades after prosecutors sent the wrong men to prison for the rape and murder of a 16-year-old girl from Long Island, New York, DNA obtained from a discarded straw has led to the indictment of a new suspect.

A Nassau county grand jury on Tuesday indicted Richard Bilodeau, 63, of Center Moriches, on two counts of murder in the death of 16-year-old Theresa Fusco, who disappeared after leaving her part-time job at a Lynbrook roller-skating rink in November 1984. Her nude body was found weeks after the assault, buried under leaves in a wooded area near the rink.

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Plantwatch: An extraordinary orchid that lives and flowers underground

Botanist trying to conserve highly vulnerable rhizanthella that survives by feeding on nutrients from a fungus

Rhizanthella is an extraordinary orchid that lives its entire life underground. It flowers below ground, has no leaves and survives by feeding on nutrients from a fungus that gets its food from the soil and by connecting with roots of the broom bush, Melaleuca uncinata.

Rhizanthella was an international sensation when it was first discovered by a farmer ploughing a field in Western Australia in 1928. It still remains incredibly difficult to find, usually by searching areas with the right habitat and carefully scraping away soil searching for the blooms buried underneath – tiny reddish flowers wrapped in creamy-pink bracts. The blooms also have a heady scent of vanilla, and may be pollinated by termites or tiny flies.

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Grisly recording reveals bat catching, killing and eating robin mid-flight

Before the Spanish study, some scientists had been sceptical about the mammals attacking migratory birds

Bats are generally viewed as harmless, if spooky, creatures of the night. But scientists have revealed a more savage side, after witnessing a greater noctule bat – Europe’s largest bat species – hunting, killing and devouring a robin mid-flight.

The grisly recording reveals the bat as a formidable predator, climbing to 1.2km (4,000ft) before embarking on a breakneck-speed dive in pursuit of its prey. On capture, the bat delivered a lethal bite and subsequent chewing sounds, recorded between echolocation calls, indicated that the bat consumed the bird continuously during flight for 23 minutes without losing altitude.

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Grisly recording reveals bat catching, killing and eating robin mid-flight

Before the Spanish study, some scientists had been sceptical about the mammals attacking migratory birds

Bats are generally viewed as harmless, if spooky, creatures of the night. But scientists have revealed a more savage side, after witnessing a greater noctule bat – Europe’s largest bat species – hunting, killing and devouring a robin mid-flight.

The grisly recording reveals the bat as a formidable predator, climbing to 1.2km (4,000ft) before embarking on a breakneck-speed dive in pursuit of its prey. On capture, the bat delivered a lethal bite and subsequent chewing sounds, recorded between echolocation calls, indicated that the bat consumed the bird continuously during flight for 23 minutes without losing altitude.

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Women carry a higher genetic risk of depression, new study says

Researchers in Australia find 16 genetic variants linked to depression in women but only eight in men

Women carry a higher genetic risk of depression, a new study has found.

Claiming to be the largest genetic study to date on sex differences in major depression, the research published Wednesday in Nature Communications has found 16 genetic variants linked to depression in women and eight in men.

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Nobel prize in medicine awarded to scientists for immune system research

Mary E Brunkow, Fred Ramsdell and Shimon Sakaguchi worked on how the immune system can be prevented from harming the body

The Nobel prize in physiology or medicine 2025 has been awarded to three scientists for their work on how the immune system is kept in check and prevented from attacking our own body.

Mary E Brunkow, Fred Ramsdell and Shimon Sakaguchi have been awarded the prize “for their discoveries concerning peripheral immune tolerance”.

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Covid school closures in UK damaged ‘very fabric of childhood’

Inquiry hears of children exposed to pornography and suffering ‘grievous’ harm without protection of schools

The Covid pandemic disrupted the “very fabric of childhood”, the UK inquiry has heard, on the first day of a four-week session devoted to its impact on children and young people.

Clair Dobbin KC, counsel to the inquiry, said in her opening submission on Monday that some of the evidence drawn from the 18,000 stories and 400 targeted interviews would be “hard to listen to”.

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Supercentenarian gives scientists insight on secrets of healthy old age

Tests on Maria Branyas Morera, who was world’s oldest person before she died last year aged 117, gave doctors a trove of discoveries

The nonagenarian actor Dame Joan Collins may have been on to something when she declared “age is just a number”.

The deepest dive yet into the biology of a supercentenarian has revealed that even extreme old age can be reached without the brain necessarily faltering or the usual illnesses mounting up.

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Huntington’s disease treated successfully for first time in UK gene therapy trial

Surgical procedure to treat devastating illness slowed progress of disease by 75% in patients after three years

Huntington’s disease, a devastating degenerative illness that runs in families, has been treated successfully for the first time in a breakthrough gene therapy trial.

The disease, caused by a single gene defect, steadily kills brain cells leading to dementia, paralysis and ultimately death. Those with a parent with Huntington’s have a 50% chance of developing the disease, which until now has been incurable.

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Kenya’s Turkana people genetically adapted to live in harsh environment, study suggests

Research which began with conversations round a campfire and went on to examine 7m gene variants shows how people survive with little water and a meat-rich diet

A collaboration between African and American researchers and a community living in one of the most hostile landscapes of northern Kenya has uncovered key genetic adaptations that explain how pastoralist people have been able to thrive in the region.

Underlying the population’s abilities to live in Turkana, a place defined by extreme heat, water scarcity and limited vegetation, has been hundreds of years of natural selection, according to a study published in Science.

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US judge rejects lawsuit challenge to SpaceX launch site over risks to wildlife

FAA ruled to have satisfied obligations in granting approval for expanded SpaceX operations next to wildlife refuge

A US district court judge on Monday rejected a suit by conservation groups challenging the Federal Aviation Administration approval in 2022 of expanded rocket launch operations by Elon Musk’s SpaceX next to a national wildlife refuge in south Texas.

The groups said noise, light pollution, construction and road traffic also degrade the area, home to endangered ocelots and jaguarundis, as well as nesting sites for endangered Kemp’s Ridley sea turtles and for threatened shorebirds. US district judge Carl Nichols in Washington said FAA had satisfied its obligation “to take a hard look at the effects of light on nearby wildlife”.

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Billion-dollar coffins? New technology could make oceans transparent and Aukus submarines vulnerable

Quantum sensing, satellite tracking and AI are part of an accelerating arms race in detection that should prompt a re-evaluation of Australia’s defence strategy

Military history is littered with the corpses of apex predators.

The Gatling gun, the battleship, the tank. All once possessed unassailable power – then were undermined, in some cases wiped out, by the march of new technology.

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