Strips of dried placenta help wounds heal with less scarring
Donated placentas can be processed into thin, sterilised sheets that are packed with natural healing substances and reduce scarring when applied to wounds
Piercing crocodile close-up wins ecology photo competition
A striking shot of biting flies on the head of a crocodile is among the winning entries in the British Ecological Society’s annual Capturing Ecology photography competition
Natural ovulation the best option before an IVF frozen embryo transfer
Women using frozen embryos as part of their IVF treatment can either choose to use a medicated cycle or their natural one to prepare their uterus for a pregnancy. Now, scientists have found that the latter option seems to carry fewer risks
Stunning images reveal the rich biodiversity of remotest Tanzania
Photographer Frédéric Noy's shots give an insight into life around the rainforests of Udzungwa Mountains National Park – and efforts to protect it
Can we battle the downsides of a rule-based world, asks a new book
Imposing order on the world is seductive, but it flattens out the diversity and rich messiness of human life. Oddly, playing by the rules may help us fight back, argues C. Thi Nguyen in The Score
The internet feels super lonely right now. Here's why
Almost 80 years ago, sociologists identified a new personality type that is particularly sensitive to loneliness. It's even more relevant today, says Annalee Newitz
We were wrong about being able to 'nudge' people to improve the world
We thought we could address big social problems by steering individual behaviour. But "nudging" people doesn't work, say behavioural scientists Nick Chater and George Loewenstein
New Scientist recommends Avatar: Fire and Ash – especially the whale
The books, TV, games and more that New Scientist staff have enjoyed this week
Let's nitpick about the physics of Stranger Things, not its ending
Feedback has seen all the fuss about the finale of Stranger Things, but would like to point out that if we're going to dissect the plot, we have bigger things to worry about
Peter F. Hamilton's latest is an epic slice of sci-fi – with one flaw
Peter F. Hamilton’s new book A Hole in the Sky is set on a troubled ark ship hundreds of years into its voyage, with fantastic plot twists and turns. I'm a big Hamilton fan, but one aspect of the novel proved alienating for me, says Emily H.
How to spot the lunar X and V
Time it right each month, and you can spot two fleeting tricks of light on the lunar surface. Abigail Beall is planning ahead
How – and why – we chose the best 21 ideas of the 21st century
From smartphones to net zero, there has been no shortage of innovative ideas in the past 25 years, which is why we have taken a look back to choose the best
Our earliest vertebrate ancestors may have had four eyes
Extraordinary fossils of 518-million-year-old jawless fish, among the earliest known vertebrates, appear to show that these animals had two pairs of eyes
Oldest known rock art is a 68,000-year-old hand stencil with claws
Newly discovered rock art sites in Sulawesi, Indonesia, that date to nearly 68,000 years ago are thought to be the oldest rock art in the world, pre-dating Neanderthal hand stencils in Spain by 1100 years
Ape-like hominin Paranthropus was more adaptable than we thought
A fossil discovery in northern Ethiopia expands the known range of Paranthropus, a genus of strong-jawed hominins that lived around 2 million years ago, and suggests they lived in a range of habitats
Bird retinas work without oxygen, and now scientists know how
The light-sensitive tissue of birds’ eyes is not supplied with oxygen by blood vessels – instead, it powers itself with a flood of sugar, and this may have evolutionary benefits
Alex Garland’s The Bone Temple is brutal, brilliant - and mind-blowing
This follow-up to the influential 28 Days Later continues to take the zombie movie franchise in a surprising and thought-provoking direction
Octopuses prompt rethink of why animals evolve big brains
A popular idea suggests a link between big brains and a rich social life, but octopuses don't fit the pattern, which suggests something else is going on
Bubble feeding trick spreads through humpback whale social groups
Humpback whales off the west coast of Canada have learned a cooperative hunting technique from whales migrating into the area, and this cultural knowledge may help the population cope as food becomes scarce
Cross-training may be the key to a long life
People who combine different types of exercise - such as running, cycling and swimming - seem to live longer than those with less varied workouts
Scientists investigate ‘dark oxygen’ in deep-sea mining zone
Startling findings in 2024 suggested that metallic nodules on the sea floor produce oxygen and might support life. Now researchers are planning an expedition to learn more and refute criticism from mining companies
World is entering an era of 'water bankruptcy'
Countries have spent beyond their sustainable water budgets for so long that critical assets are depleted and the world faces huge economic, social and environmental costs
Chernobyl cooling systems have lost power but meltdown risk is low
An electrical outage at Chernobyl nuclear power plant risks dangerous fuel overheating, but experts say that the chances are extremely slim due to the age of the reactors, which were shut down over two decades ago
Satellites could use magnetic fields to avoid collisions
Two or more satellites could communicate and manoeuvre around one another using magnetic fields, although getting the technique to work at scale in space might be tricky
The 3 best ways to tackle anxiety, according to a leading expert
It is impossible to get rid of anxiety because it exists to help us, says cognitive psychotherapist Owen O'Kane. Instead, he suggests three ways to reframe your relationship with anxiety in order to take back control
Mars once had a vast sea the size of the Arctic Ocean
Spacecraft orbiting the Red Planet have helped researchers map out an ancient coastline that surrounded a large ocean billions of years ago
Sunscreens made from ground-up wood reach an SPF of over 180
Concerns around common sunscreen chemicals have prompted the search for natural alternatives, with lignin from wood being one of the most promising candidates
Embracing quantum spookiness: Best ideas of the century
The strange principle of quantum entanglement baffled Albert Einstein. Yet finally putting quantum weirdness to the ultimate test, and embracing the results, turned out to be a revolutionary idea
Pinning extreme weather on climate change: Best ideas of the century
It never used to be possible to attribute individual weather events to climate change and map their full consequences. Thanks to the work of two pioneering climate scientists, it is now
Filming the universe’s biggest dramas: Best ideas of the century
Astronomers used to rely on chance to catch a glimpse of fleeting explosions in space. A fresh approach to watching these flashes has completely transformed astronomy
The invention of net zero: Best ideas of the century
Net zero wasn’t always the target – the consensus used to be that we could continue releasing greenhouse gases and maintain global temperatures. How did that change?
A revolution in how we do chemistry: Best ideas of the century
From finding new antibiotic candidates to studying the insides of cells, snapping molecules together "like Lego" has completely overhauled chemistry, and biology too
Why a tool-using cow could change how we see farm animals
A pet cow has learned to scratch herself with a broom, showing creative problem-solving skills that make it harder to ignore the fact that these animals have minds, says Marta Halina
There’s no such thing as a normal brain: Best ideas of the century
Neurodiversity research has reshaped how we think about autism and ADHD, revealing that a “normal” brain doesn’t exist – and that unusual brains also come with unique strengths
The one innovation that supercharged AI: Best ideas of the century
The most powerful artificial intelligence tools all have one thing in common. Whether they are writing poetry or predicting protein structures, they rely on the "transformer" architecture
The one diet that’s good for everything: Best ideas of the century
Time and time again, scientists have found that one diet beats all others when it comes to our health. Fortunately, it's delicious – and also good for the planet
The immense interconnectivity of the brain: Best ideas of the century
How discovering that different parts of the brain work together as networks has transformed our understanding of everything from daydreaming and emotions to planning and memory
The hidden power of epigenetics: Best ideas of the century
Following the surprising discovery that our genetic blueprint is much simpler than expected, we’ve rapidly learned that we have epigenetics to thank for our extraordinary complexity
End-to-end encryption: Best ideas of the century
How end-to-end encryption is the wall that keeps our digital secrets safe – and why modern life would be unimaginable without it
Revealing the epic story of ancient humans: Best ideas of the century
Since the turn of the millennium, our understanding of our ancestors and extended cousins has shifted dramatically, thanks to a swathe of surprising archaeological discoveries
The totemic 1.5°C climate target: Best ideas of the century
Although we’re on course to cross 1.5°C of warming, the alliance of small island nations that revised our goal down from the 2°C threshold transformed global climate policy
How fear drastically shapes ecosystems: Best ideas of the century
Understanding the “landscape of fear” that predators create in their environments has helped us uncover just how drastically humans have upended the natural world
We can block the spread of HIV: Best ideas of the century
The “enormous revelation” that drugs can be used to prevent catching HIV has benefitted millions and helped slash transmission rates
The electrification of everything: Best ideas of the century
Transitioning from fossil fuels to renewable power is crucial. The opening of Tesla's first "gigafactory", which used economies of scale to electrify our transport and energy systems, marked a turning point in this endeavour
Our solar system is extremely weird: Best ideas of the century
Realising that our solar system isn’t like most others out there has helped astronomers rewrite the story of how it formed
New Scientist’s guide to the 21 best ideas of the 21st century
A quarter of a century in, this is our definitive pick of the ideas in science and technology that are already transforming the world
Crowdsourcing Wikipedia’s encyclopedia: Best ideas of the century
The internet is typically defined by conflict. Yet a crowdsourced encyclopedia, open for anyone to edit, has transformed into one of the world's most essential knowledge hubs
The 5 worst ideas of the 21st century – and how they went wrong
They offered so much promise, but ultimately turned sour. These are the most disappointing ideas since the turn of the millennium
Smartphones (yes, really): Best ideas of the century
Some might say smartphones have caused more harm than good. Here’s why putting a powerful computer into every pocket was a good idea
Realising the importance of our microbiome: Best ideas of the century
Humans have been inadvertently using microbes to influence our health for thousands of years. But only recently has the microbiome rocketed to the forefront of healthcare
We can rewrite our genetic code: Best ideas of the century
Our genomes are filled with errors that were once impossible to correct. But in CRISPR, we finally found an extraordinarily powerful tool for treating genetic disease – and perhaps making better versions of ourselves
Barnacle gloop could improve inflammatory bowel disease treatments
A "living glue" used by barnacles to attach to underwater surfaces could also seal gut wounds caused by inflammatory bowel disease
Should Europe boycott US tech over Greenland, and is it even possible?
As tensions over Greenland rise, some Europeans are asking whether it is time to disentangle themselves from US tech dominance – but from smartphones to cloud services, rejecting US tech is easier said than done
Star appears to have vanished in a failed supernova
It is theoretically possible for a particularly massive star to collapse in on itself to form a black hole rather than exploding in a supernova, and we might now have seen the process in action
The most important second in the entire history of the universe
In the 13.8 billion years that our universe has been around, some moments stand out over others – for the most exciting and impactful one, we have to go back to the very beginning, says cosmology columnist Leah Crane
Giving astronauts tardigrade toughness will be harder than we hoped
The protein that protects tardigrade DNA from radiation and mutagenic chemicals was thought to be harmless, but can in fact have major downsides
Volcanoes had lower greenhouse gas emissions in Earth's past
Eruptions from volcanic arcs, found where tectonic plates converge, are one of the major drivers of natural carbon emissions, but a model of Earth’s ancient carbon cycle suggests this is a relatively recent phenomenon
First treaty to protect the high seas comes into force
A United Nations agreement for the “conservation and sustainable use of marine biological diversity” in the open oceans has now taken effect
Meat may play an unexpected role in helping people reach 100
Longevity diets often focus on going plant-based, but a study in China has linked eating meat to a long lifespan, particularly among older people who are underweight
Amateur mathematicians solve long-standing maths problems with AI
Professional mathematicians have been stunned by the progress amateurs have made in solving long-standing problems with the assistance of AI tools, and say it could lead to a new way of doing mathematics
How to finally get a grasp on quantum computing
If your New Year’s resolution is to understand quantum computing this year, take a cue from a 9-year-old podcaster talking to some of the biggest minds in the field, says quantum columnist Karmela Padavic-Callaghan
Cancelling plans may be more socially acceptable than you think
Volunteers consider it relatively unacceptable to cancel social plans – but they are more forgiving if it's someone else cancelling the plans
Earliest ever supernova sheds light on the first stars
The James Webb Space Telescope has picked up the light from a massive star that exploded about a billion years after the birth of the universe
A leading use for quantum computers might not need them after all
Understanding a molecule that plays a key role in nitrogen fixing – a chemical process that enables life on Earth – has long been thought of as problem for quantum computers, but now a classical computer may have solved it
Cheating just three times massively ups the chance of winning at chess
Using a chess computer to advise you on just three moves during a game dramatically increases your chances of winning in a way that is difficult for others to spot
Lithium-ion batteries could last longer with chemical tweak
It's difficult to form a protective coating that prolongs battery life at the battery's cathode, but there may be a low-cost chemical solution
Body fat supports your health in surprisingly complex ways
Evidence is mounting that our body fat supports everything from our bone health to our mood, and now, research suggests it also regulates blood pressure and immunity
Distant 'little red dot' galaxies may contain baby black holes
Since launching in 2021, the James Webb Space Telescope has found hundreds of distant and apparently bright galaxies dubbed "little red dots", and now it seems they may each carry a baby black hole
Fossil may solve mystery of what one of the weirdest-ever animals ate
Hallucigenia was such an odd animal that palaeontologists reconstructed it upside-down when they first analysed its fossils - and now we may know what it ate
6 ways to help your children have a healthy relationship with food
Getting kids to eat well can be a minefield and a source of tension. Nancy Bostock, a consultant paediatrician, says these are the six things she recommends when dealing with fussy eaters and the way we talk about food with kids.
All major AI models risk encouraging dangerous science experiments
Researchers risk fire, explosion or poisoning by allowing AI to design experiments, warn scientists. Some 19 different AI models were tested on hundreds of questions to assess their ability to spot and avoid hazards and none recognised all issues – with some doing little better than random guessing
These striking photos are a window into the world of quantum physics
David Severn has taken a series of images of scientists working on quantum physics for King’s College London’s new Quantum Untangled exhibition
Why non-human culture should change how we see nature
Our growing understanding of how other animals also share skills and knowledge will help us chip away at the folly of human exceptionalism, say Philippa Brakes and Marc Bekoff
A new book provides a toolkit to tackle anxiety. Can it really help?
How do we deal with anxiety generated by ever-accelerating change? Sam Conniff and Katherine Templar-Lewis's The Uncertainty Toolkit sets out to empower us, but it's a flawed read
New Scientist recommends Why We Drink Too Much for Dry January
The books, TV, games and more that New Scientist staff have enjoyed this week
We're getting intimate with chatbots. A new book asks what this means
AI chatbots can take on many roles in our lives. James Muldoon's Love Machines looks into the relationships we're forging with them
The science that will help you feel more fulfilled with your life
January is a good time to take stock of our lives – but where to start? David Robson finds some answers in the latest psychological research
AI is promising to revolutionise how we diagnose mental illness
As rates of mental health conditions like depression spike, we desperately need new ways of identifying and treating people in distress. When it comes to giving artificial intelligence a role, though, guarding against its many flaws will be vital
Woolly rhino genome recovered from meat in frozen wolf pup’s stomach
A piece of woolly rhinoceros flesh hidden inside a wolf that died 14,400 years ago has yielded genetic information that improves our understanding of why one of the most iconic megafauna species of the last glacial period went extinct
Sinking river deltas put millions at risk of flooding
Some of the world’s biggest megacities are located in river deltas threatened by subsidence due to excessive groundwater extraction and urban expansion, compounding the threat they face from sea-level rise
Psychiatry has finally found an objective way to spot mental illness
A decades-long push to identify clear biomarkers for anxiety and depression is at last achieving results
China has applied to launch 200,000 satellites, but what are they for?
A Chinese application to the International Telecommunications Union suggests plans for the largest satellite mega constellation ever built – but something else might be going on here
T. rex took 40 years to become fully grown
An analysis of growth rings in the leg bones of 17 Tyrannosaurus rex individuals reveals that the dinosaurs matured much more slowly than previously thought, and adds to the evidence that they weren't all one species
Three ways to become calmer this New Year that you haven't tried (yet)
Easing stress is one of the healthiest pursuits you can embark on this January. Here are some evidence-backed ways to ground yourself in 2026
We must completely change the way we build homes to stay below 2°C
Construction generates between 10 and 20 per cent of the world's greenhouse gas emissions, but cities can slash their climate impact by designing buildings in a more efficient way
Sooner-than-expected climate impacts could cost the world trillions
A report warns that we may have seriously underestimated the rate of warming, which could damage economic growth
These small lifestyle tweaks can add a year to your life
A few extra minutes of sleep per day or an extra half-serving of vegetables with dinner can add a year to our lives, according to an analysis of data from 60,000 people
The hunt for where the last Neanderthals lived
Clues from studies of ancient plants and animals have helped archaeologists pin down where the last Neanderthals found refuge, says columnist Michael Marshall
The Pacific Islanders fighting to save their homes from catastrophe
Some of climate change's sharpest realities are being felt on small island nations, where extreme weather is claiming homes and triggering displacement. Those able to stay are spearheading inventive adaptation techniques in a bid to secure their future
Greenland sharks survive for centuries with diseased hearts
A study of the hearts of Greenland sharks has found that the long-lived deep-sea predator has massive accumulations of ageing markers, such as severe scarring, but this doesn't appear to affect their health or longevity
Pompeii’s public baths were unhygienic until the Romans took over
Before the Romans captured Pompeii, the famous town was run by the Samnite people – and a dip in their public baths might have been an unpleasant experience
Quantum computers could help sharpen images of exoplanets
Combining two kinds of quantum computing devices could be just the trick for taking better images of faint, faraway exoplanets
Our elegant universe: rethinking nature’s deepest principle
For centuries, the principle of symmetry has guided physicists towards more fundamental truths, but now a slew of shocking findings suggest a far stranger idea from quantum theory could be a deeper driving force
Is there an evolutionary reason for same-sex sexual behaviour?
Sexual behaviour among same-sex pairs is common in apes and monkeys, and a wide-ranging analysis suggests it does boost survival
We're about to simulate a human brain on a supercomputer
The world’s most powerful supercomputers can now run simulations of billions of neurons, and researchers hope such models will offer unprecedented insights into how our brains work
Why it’s easy to be misunderstood when talking about probability
Mathematicians rely on numbers, but finding words to explain different levels of certainty has stymied everyone from the ancient Greeks to the most famous modern philosophers. Maths columnist Jacob Aron tells the story of how a CIA analyst finally cracked it
Sinking trees in Arctic Ocean could remove 1 billion tonnes of CO2
Cutting down boreal forest and sinking the felled trees in the depths of the Arctic Ocean could remove up to 1 billion tonnes of carbon dioxide from the atmosphere each year – but it could come at a cost to the Arctic ecosystem
NASA is performing an unprecedented medical evacuation from the ISS
One of the astronauts aboard the International Space Station is undergoing a “medical situation”, forcing NASA to bring the crew home early for the first time ever
Microbiome study hints that fibre could be linked to better sleep
Evidence is mounting that specific gut bacteria are linked to sleep conditions, which may open the doors to dietary recommendations aiming to boost the quality of our slumbers
Why does the United States want to buy Greenland?
The ice-covered island may be strategically important, but it's unclear that it could be a commercially viable source of minerals and oil in the near future
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