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In this week’s issue: Does an exceptionally strange protein finally reveal where we came from?
Grab a copy in shops now or download our app for digital editions. www.newscientist.com/issue/3572/
Grab a copy in shops now or download our app for digital editions. www.newscientist.com/issue/3572/
A chaotic schedule over the holiday season often derails Grace Wade’s workout routine. But this year she has a plan…
The quick and easy ways to stay fit this holiday season
A chaotic schedule over the holiday season often derails Grace Wade’s workout routine. But this year she has a plan…
www.newscientist.com
December 7, 2025 at 12:58 PM
A chaotic schedule over the holiday season often derails Grace Wade’s workout routine. But this year she has a plan…
Tumour growth is reduced by exercise due to a shift in the body’s metabolism that means muscle cells outcompete cancer cells in the race to get sugar to grow
We now have a greater understanding of how exercise slows cancer
Tumour growth is reduced by exercise due to a shift in the body’s metabolism that means muscle cells outcompete cancer cells in the race to get sugar to grow
www.newscientist.com
December 7, 2025 at 12:33 PM
Tumour growth is reduced by exercise due to a shift in the body’s metabolism that means muscle cells outcompete cancer cells in the race to get sugar to grow
Body fat, often reviled, is actually a vital organ that contributes to your health and well-being. It is time for us to stop vilifying fat and to start exploring how we can harness its power
How a new way of thinking about fat could transform your health
Body fat, often reviled, is actually a vital organ that contributes to your health and well-being. It is time for us to stop vilifying fat and to start exploring how we can harness its power
www.newscientist.com
December 7, 2025 at 12:12 PM
Body fat, often reviled, is actually a vital organ that contributes to your health and well-being. It is time for us to stop vilifying fat and to start exploring how we can harness its power
Unexplained gamma ray radiation coming from the edge of the Milky Way galaxy could be produced by self-annihilating dark matter particles – but the idea requires further investigation
We might have just seen the first hints of dark matter
Unexplained gamma ray radiation coming from the edge of the Milky Way galaxy could be produced by self-annihilating dark matter particles – but the idea requires further investigation
www.newscientist.com
December 7, 2025 at 11:40 AM
Unexplained gamma ray radiation coming from the edge of the Milky Way galaxy could be produced by self-annihilating dark matter particles – but the idea requires further investigation
Over the past 250 million years, periods when coral reef growth has peaked have coincided with big rises in sea temperatures
Coral reefs have fuelled severe global warming in Earth's past
Over the past 250 million years, periods when coral reef growth has peaked have coincided with big rises in sea temperatures
www.newscientist.com
December 7, 2025 at 11:17 AM
Over the past 250 million years, periods when coral reef growth has peaked have coincided with big rises in sea temperatures
Inspired by natural polymers like DNA, chemists have devised a way to engineer plastic so it breaks down when it is no longer needed, rather than polluting the environment
Plastic can be programmed to have a lifespan of days, months or years
Inspired by natural polymers like DNA, chemists have devised a way to engineer plastic so it breaks down when it is no longer needed, rather than polluting the environment
www.newscientist.com
December 7, 2025 at 10:44 AM
Inspired by natural polymers like DNA, chemists have devised a way to engineer plastic so it breaks down when it is no longer needed, rather than polluting the environment
Feeling alienated in others' company, or "existential isolation", can happen to us all. David Robson digs into the psychological literature for a solution for one reader
Why do I feel lonely even when I'm surrounded by a festive crowd?
Feeling alienated in others' company, or "existential isolation", can happen to us all. David Robson digs into the psychological literature for a solution for one reader
www.newscientist.com
December 7, 2025 at 10:17 AM
Feeling alienated in others' company, or "existential isolation", can happen to us all. David Robson digs into the psychological literature for a solution for one reader
The cultivation of wheat, barley and maize, which are easily stored and taxed, seems to have led to the emergence of large societies, rather than agriculture generally
Easily taxed grains were crucial to the birth of the first states
The cultivation of wheat, barley and maize, which are easily stored and taxed, seems to have led to the emergence of large societies, rather than agriculture generally
www.newscientist.com
December 7, 2025 at 9:56 AM
The cultivation of wheat, barley and maize, which are easily stored and taxed, seems to have led to the emergence of large societies, rather than agriculture generally
We know that pets influence our microbiome, but scientists have now found that having a dog seems to change this ecosystem in a way that could boost our well-being
Dogs may make us more caring and sociable by changing our microbiome
We know that pets influence our microbiome, but scientists have now found that having a dog seems to change this ecosystem in a way that could boost our well-being
www.newscientist.com
December 7, 2025 at 9:15 AM
We know that pets influence our microbiome, but scientists have now found that having a dog seems to change this ecosystem in a way that could boost our well-being
The New Scientist Book Club is currently reading the late Iain M. Banks’s Culture novel The Player of Games. Fellow science fiction author Bethany Jacobs reveals how his work inspired her
Why sci-fi novelist Iain M. Banks was an ‘astounding’ world-builder
The New Scientist Book Club is currently reading the late Iain M. Banks’s Culture novel The Player of Games. Fellow science fiction author Bethany Jacobs reveals how his work inspired her
www.newscientist.com
December 7, 2025 at 8:49 AM
The New Scientist Book Club is currently reading the late Iain M. Banks’s Culture novel The Player of Games. Fellow science fiction author Bethany Jacobs reveals how his work inspired her
We can't see dark matter directly, so studying it pushes the boundaries of our creativity as scientists. How exciting, says Chanda Prescod-Weinstein
Why dark matter is still one of the biggest open problems in science
We can't see dark matter directly, so studying it pushes the boundaries of our creativity as scientists. How exciting, says Chanda Prescod-Weinstein
www.newscientist.com
December 7, 2025 at 7:59 AM
We can't see dark matter directly, so studying it pushes the boundaries of our creativity as scientists. How exciting, says Chanda Prescod-Weinstein
Nearly three decades since the remarkable cloning of Dolly the sheep, it has all gone quiet on the human cloning front. Michael Le Page wonders what's happening behind the scenes
Could the super-rich be cloning themselves? And why would they?
Nearly three decades since the remarkable cloning of Dolly the sheep, it has all gone quiet on the human cloning front. Michael Le Page wonders what's happening behind the scenes
www.newscientist.com
December 7, 2025 at 7:19 AM
Nearly three decades since the remarkable cloning of Dolly the sheep, it has all gone quiet on the human cloning front. Michael Le Page wonders what's happening behind the scenes
Pet owners' increasing tendency to see their animals as children rather than dogs or cats can have dire consequences. Owners, and veterinarians, should be wary, warns Eddie Clutton
Stop treating your pet like a fur baby – you're damaging its health
Pet owners' increasing tendency to see their animals as children rather than dogs or cats can have dire consequences. Owners, and veterinarians, should be wary, warns Eddie Clutton
www.newscientist.com
December 7, 2025 at 6:35 AM
Pet owners' increasing tendency to see their animals as children rather than dogs or cats can have dire consequences. Owners, and veterinarians, should be wary, warns Eddie Clutton
We have long struggled to determine how the first living organisms on Earth came together. Now, surprising evidence hints that poorly understood prions may have been the vital missing ingredient
A sinister, deadly brain protein could reveal the origins of all life
www.newscientist.com
December 7, 2025 at 6:12 AM
We have long struggled to determine how the first living organisms on Earth came together. Now, surprising evidence hints that poorly understood prions may have been the vital missing ingredient
From a dragonfly to marine organisms, photographer Michael Benson zoomed in with powerful scanning electron microscopes to take these extraordinary shots for his book Nanocosmos
Images reveal the astonishing complexity of the microscopic world
From a dragonfly to marine organisms, photographer Michael Benson zoomed in with powerful scanning electron microscopes to take these extraordinary shots for his book Nanocosmos
www.newscientist.com
December 7, 2025 at 5:53 AM
From a dragonfly to marine organisms, photographer Michael Benson zoomed in with powerful scanning electron microscopes to take these extraordinary shots for his book Nanocosmos
Domestic cats originated in North Africa and spread to Europe in the past 2000 years, according to DNA evidence, while in China a different species of cat lived alongside people much earlier
Origin story of domestic cats rewritten by genetic analysis
Domestic cats originated in North Africa and spread to Europe in the past 2000 years, according to DNA evidence, while in China a different species of cat lived alongside people much earlier
www.newscientist.com
December 7, 2025 at 4:44 AM
Domestic cats originated in North Africa and spread to Europe in the past 2000 years, according to DNA evidence, while in China a different species of cat lived alongside people much earlier
Women's hidden extra work, positive tipping points and new thinking on autism – there's much to chew on in this year's best reads, says Liz Else
The 13 best popular science books of 2025
Women's hidden extra work, positive tipping points and new thinking on autism – there's much to chew on in this year's best reads, says Liz Else
www.newscientist.com
December 7, 2025 at 4:12 AM
Women's hidden extra work, positive tipping points and new thinking on autism – there's much to chew on in this year's best reads, says Liz Else
It might sound like dystopian science fiction, but discovering how to reshape memories responsibly is helping us to heal the brain from within, says Steve Ramirez
Why memory manipulation could be one of humanity's healthiest ideas
It might sound like dystopian science fiction, but discovering how to reshape memories responsibly is helping us to heal the brain from within, says Steve Ramirez
www.newscientist.com
December 7, 2025 at 12:23 AM
It might sound like dystopian science fiction, but discovering how to reshape memories responsibly is helping us to heal the brain from within, says Steve Ramirez
From Mickey 17 and M3gan 2.0 to a musical about the end of the world, this was an eclectic year for science-fiction films. Film columnist Simon Ings shares his two breakout hits
The two standout science-fiction films of 2025
From Mickey 17 and M3gan 2.0 to a musical about the end of the world, this was an eclectic year for science-fiction films. Film columnist Simon Ings shares his two breakout hits
www.newscientist.com
December 6, 2025 at 11:57 PM
From Mickey 17 and M3gan 2.0 to a musical about the end of the world, this was an eclectic year for science-fiction films. Film columnist Simon Ings shares his two breakout hits
There is a widespread belief that altruism and equality drive social behaviour in traditional hunter-gatherer societies, but the truth is more surprising and complex
Hunter-gatherer groups are much less egalitarian than they seem
There is a widespread belief that altruism and equality drive social behaviour in traditional hunter-gatherer societies, but the truth is more surprising and complex
www.newscientist.com
December 6, 2025 at 8:02 PM
There is a widespread belief that altruism and equality drive social behaviour in traditional hunter-gatherer societies, but the truth is more surprising and complex
Albert Einstein and Niels Bohr had an ongoing rivalry about the true nature of quantum mechanics, and came up with a thought experiment that could settle the matter. Now, that experiment has finally been performed for real
Quantum experiment settles a century-old row between Einstein and Bohr
Albert Einstein and Niels Bohr had an ongoing rivalry about the true nature of quantum mechanics, and came up with a thought experiment that could settle the matter. Now, that experiment has finally been performed for real
www.newscientist.com
December 6, 2025 at 6:59 PM
Albert Einstein and Niels Bohr had an ongoing rivalry about the true nature of quantum mechanics, and came up with a thought experiment that could settle the matter. Now, that experiment has finally been performed for real
From drowned worlds to virtual utopias via deep space, wild ideas abound in Emily H. Wilson's picks for her favourite sci-fi reads of the year
The 12 best science fiction books of 2025
From drowned worlds to virtual utopias via deep space, wild ideas abound in Emily H. Wilson's picks for her favourite sci-fi reads of the year
www.newscientist.com
December 6, 2025 at 5:58 PM
From drowned worlds to virtual utopias via deep space, wild ideas abound in Emily H. Wilson's picks for her favourite sci-fi reads of the year
Archaeologists have gathered evidence from hundreds of Bronze Age sites in western Turkey that could be remnants of a civilisation that has been largely overlooked
Was a little-known culture in Bronze Age Turkey a major power?
Archaeologists have gathered evidence from hundreds of Bronze Age sites in western Turkey that could be remnants of a civilisation that has been largely overlooked
www.newscientist.com
December 6, 2025 at 5:33 PM
Archaeologists have gathered evidence from hundreds of Bronze Age sites in western Turkey that could be remnants of a civilisation that has been largely overlooked
Stars powered by dark matter instead of nuclear fusion could solve several mysteries of the early universe, and we may have spotted the first hints that they are real
Supermassive dark matter stars may be lurking in the early universe
Stars powered by dark matter instead of nuclear fusion could solve several mysteries of the early universe, and we may have spotted the first hints that they are real
www.newscientist.com
December 6, 2025 at 5:16 PM
Stars powered by dark matter instead of nuclear fusion could solve several mysteries of the early universe, and we may have spotted the first hints that they are real
From legal challenges to lesser-known apps, the teenagers of Australia are already preparing to push back against a law that will see under 16s banned from social media
How Australian teens are planning to get around their social media ban
From legal challenges to lesser-known apps, the teenagers of Australia are already preparing to push back against a law that will see under 16s banned from social media
www.newscientist.com
December 6, 2025 at 4:52 PM
From legal challenges to lesser-known apps, the teenagers of Australia are already preparing to push back against a law that will see under 16s banned from social media