Notícias · Recifes

Shark‑spotting drones are about reassurance—not full protection

Sharks are front of mind for many Sydneysiders and coastal New South Wales residents. In January, a teenager died amid a spate of attacks in and around Sydney. This month, a woman was bitten by a large great white while swimming close to shore and between the flags at Coogee Beac

Admin Recifes 15/07/2026 1

New Orleans residents on warning to abandon sinking city: ‘Nobody wants to leave home’

After a recent study found New Orleans is at a ‘point of no return’ amid the climate crisis, some locals say they will ‘only leave if forced to’. But what would it take to stay?When a study in May concluded that New Orleans has hit a “point of no return” due to the climate crisis

Admin Recifes 15/07/2026 1

Webb reveals merger scars in galaxies that stopped forming stars 9 billion years ago

Research has shed new light on why some distant galaxies suddenly stop forming stars. An international team led by astronomers at the University of Nottingham has used the James Webb Space Telescope to study a large sample of recently "quenched" galaxies in the distant universe,

Admin Recifes 15/07/2026 1

Prickly starfish and urchins are decimating Australia's reefs. But we could find ways to p

Australia is home to some of the world's most beautiful reefs. This includes the lush Great Southern Reef, which wraps around Australia's southern coastline, and the world-renowned Great Barrier Reef.

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Nominate your invertebrate of the year

We’re asking people from around the world to nominate their favourite spineless species for our third Invertebrate of the Year competitionStep aside World Cup heroes, there’s a bigger global competition in town. The whistle has been blown to launch the third Invertebrate of the Y

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Comet from another star has a composition unlike anything else in our solar system

Astronomers have revealed new details about the makeup and age of a visiting comet that was born around a distant star. They conclude that the composition of 3I/Atlas is strikingly different from any object found in our solar system.

Admin Recifes 15/07/2026 1

What makes a star a star? A strange 'in‑between' celestial object is testing astronomers'

A star called TOI-2155 lies around 1,350 light-years (839 trillion miles) from Earth. It is a little bigger, heavier and hotter than the sun, and it is not particularly interesting or unusual in itself.

Admin Recifes 15/07/2026 1

Quantum gravity tests may mistake ordinary spacetime for superposition

Everything around us, from atoms and molecules to planets and galaxies, is governed by two extraordinarily successful theories of physics: quantum mechanics and gravity. Quantum mechanics explains the behavior of the microscopic world, while Einstein's theory of gravity describes

Admin Recifes 15/07/2026 1

Scientists uncover why Antarctica became engulfed by ice millions of years before the Arct

Scientists have uncovered why Antarctica became engulfed by ice millions of years before the Arctic. The international research, published in Science, helps solve one of climate science's longest-standing puzzles: how a vast ice sheet could form when Earth was around 5°C warmer t

Admin Recifes 15/07/2026 1

We can't air-condition our way out of a hotter future, says expert

As temperatures rise around the world, air conditioning is saving lives. But a growing reliance on it is also placing unprecedented pressure on electricity grids, increasing greenhouse gas emissions and making cities even hotter.

Admin Recifes 15/07/2026 1

Modern life may be outpacing the human mind

The human brain evolved for a world of familiar faces, immediate threats and small social groups. But the world around us is changing far faster than human biology can keep pace. That mismatch may help explain some of the stress, loneliness and constant comparison people experien

Admin Recifes 15/07/2026 1

Listen to Britain’s dawn chorus of 1976: the dramatic loss of birdsong in 50 years

Guardian recreates audio landscape of past filled by loud morning symphony before 73m wild birds were lostImagine a deafening abundance of birdsong so loud it wakes your children at dawn; the chirrup of house sparrows, the chattering of starlings, the melody of the wren, and the

Admin Recifes 15/07/2026 1

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