Environment
Billionaires must not be allowed to geoengineer the planet
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This week's magazine
25 October 2025
Issue 3566
On the cover
Editor's picks
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Everything is perimenopause now 鈥� but what if it鈥檚 not?
Features
Mind
What 350 different theories of consciousness reveal about reality
Features
Earth
How worried should we be about noxious chemicals from dead satellites?
Features
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The extraordinary influence of the lymphatic system on our health
Features
Table of contents
News
Space
See a spectacular shot of a once-in-a-millennium comet
Captured here over Somerset, England, Comet C/2025 A6 (Lemmon) made its closest approach to Earth on 21 October and won't be seen again for another thousand years
News
Environment
Exclusive: Climate scientists expect attempts to dim the sun by 2100
News
Mind
Paralysed man can feel objects through another person’s hand
News
Space
The centre of our galaxy may be teeming with dark matter particles
News
Life
Dinosaur fossil rewrites the story of how sauropods got long necks
News
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Replacing sugar with artificial sweetener may help your gut microbiome
News
Humans
Early hominin had human-like dexterity and gorilla strength
News
Humans
Neanderthal-human hybrids may have been scourged by a genetic mismatch
News
Mind
School phone bans may actually harm some students’ mental health
News
Features
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The extraordinary influence of the lymphatic system on our health
It has remained mysterious for millennia, but we鈥檙e finally uncovering the profound role the lymphatic system plays in everything from preventing dementia to fighting cancer
Features
Mind
What 350 different theories of consciousness reveal about reality
Features
Earth
How worried should we be about noxious chemicals from dead satellites?
Features
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Everything is perimenopause now 鈥� but what if it鈥檚 not?
Features
Culture
Environment
An excellent guide to the labyrinthine world of COP summits
In the run-up to this year's COP in Brazil, Madeleine Cuff explores The Climate Diplomat, a poignant account by the late Peter Betts, a negotiator who showed what diplomacy can achieve
Culture
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New Scientist recommends Material World at Royal Botanic Gardens, Kew
Culture
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Chilling book exposes true cost of tech bros’ immortality dreams
Culture
Environment
Must-watch documentary shows how Bush Senior failed the climate
Culture
More
Mind
Horror fans aren’t cold and unfeeling 鈥� just listen to the science
The prevailing wisdom is that horror fans lack empathy and are addicted to adrenaline. My research shows otherwise, says Coltan Scrivner
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Society
Could a self-monitoring system for criminals replace prisons one day?
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Why group exercise is better than working out alone
Regulars
Tom Gauld on returning a particular subject to its natural habitat
Regulars
Twisteddoodles: dissolve powder A in liquid B and see what happens…
Regulars
Regulars
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This paper should win a prize for its refusal to make any big claims
Feedback delights in a 2018 paper that takes care to warn us it reveals 鈥渘othing like super interesting鈥�, and embarks on a quest to find more examples of disarming honesty
This Week鈥檚 Letters
Letters
Should bubble wrap face the inside or the outside of the object?
Last Word
Why do rainbows refract light into several colours but clouds don鈥檛?
Last Word
To warm up quickly, should I put on my trousers or top first? part 2
Last Word
This week鈥檚 new questions
Last Word
