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This week's magazine

22 February 2025

Issue 3531

New Scientist issue 3531 cover
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On the cover

Features
When did time begin? Hint: It wasn鈥檛 at the big bang
When did the first galaxies form? Earlier than we thought possible
When did life begin on Earth? New evidence reveals a shocking story
We are finally getting to grips with how plate tectonics started
We鈥檙e uncovering a radically different view of civilisation鈥檚 origins
Why geologists can鈥檛 agree on when the Anthropocene Epoch began
From headaches to tics, how mass nocebo effects spread real symptoms
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Mouse brain slices brought back to life after being frozen for a week
Giant megalodon sharks may have sparred with their jaws
Why we may crave dessert even when we are full from dinner
How the drone battles of Ukraine are shaping the future of war
Pompeii鈥檚 streets show how the city adapted to Roman rule
Analysis
Rewilding is often championed, but could it be bad for biodiversity?
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Editor's picks

F20J3E Glowing question mark symbol in forest at night

Life

The 7 most consequential moments in the history of everything

Comment
From headaches to tics, how mass nocebo effects spread real symptoms

Mind

From headaches to tics, how mass nocebo effects spread real symptoms

Features
When did time begin? Hint: It wasn鈥檛 at the big bang

Space

When did time begin? Hint: It wasn鈥檛 at the big bang

Features
We鈥檙e uncovering a radically different view of civilisation鈥檚 origins

Humans

We鈥檙e uncovering a radically different view of civilisation鈥檚 origins

Features
When did life begin on Earth? New evidence reveals a shocking story

Life

When did life begin on Earth? New evidence reveals a shocking story

Features
Why geologists can鈥檛 agree on when the Anthropocene Epoch began

Environment

Why geologists can鈥檛 agree on when the Anthropocene Epoch began

Features
We are finally getting to grips with how plate tectonics started

Earth

We are finally getting to grips with how plate tectonics started

Features
When did the first galaxies form? Earlier than we thought possible

Space

When did the first galaxies form? Earlier than we thought possible

Features
Why it鈥檚 so hard to tell when Homo sapiens became a distinct species

Humans

Why it鈥檚 so hard to tell when Homo sapiens became a distinct species

Features

Table of contents

Leaders

F20J3E Glowing question mark symbol in forest at night

Life

The 7 most consequential moments in the history of everything

From the beginning of time to the origins of life, our "when" special series tackles the timing of crucial events and the surprising new discoveries we are making about them

Comment

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Environment

Dyes made by microbes could reduce the environmental impact of clothes

A UK start-up is producing dyes made by bacteria and yeast rather than fossil fuel-derived chemicals, which could help clothes manufacturers cut energy use and pollution

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Technology

People are starting to trust AI more 鈥 and view it as more human-like

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Earth

Forces deep underground seem to be deforming Earth's inner core

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Space

Distant exoplanet may be the most volcanic world ever found

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Health

CAR T-cell therapy could help prevent clogged arteries

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Health

Mouse brain slices brought back to life after being frozen for a week

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Environment

Oil firms' plans for net-zero oil extraction labelled as 'PR spiel'

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Life

Giant megalodon sharks may have sparred with their jaws

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Humans

Most Europeans may have had dark skin until less than 3000 years ago

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Health

Strongest evidence yet that Ozempic and Wegovy reduce alcohol intake

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Life

How a moth uses an optical illusion to disguise itself as a leaf

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Life

Quail-sized feathered dinosaur may be the earliest known bird

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Physics

How big is a neutrino? We're finally starting to get an answer

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Earth

California鈥檚 groundwater drought continues despite torrential rain

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Space

Tiny dwarf galaxy might house a supermassive black hole

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Mind

Why we may crave dessert even when we are full from dinner

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Technology

How the drone battles of Ukraine are shaping the future of war

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Life

Surprising fossils suggest early animals survived outside of water

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Humans

Pompeii鈥檚 streets show how the city adapted to Roman rule

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Earth

See Mount Etna's latest lava flow glow on the snow-covered volcano

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Analysis

A Eurasian beaver that was reintroduced in Devon, UK

Environment

Rewilding is often championed, but could it be bad for biodiversity?

Conservation projects in wealthy but nature-depleted countries can cause food and timber production to 鈥渓eak鈥 into poorer, biodiverse nations听

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Aperture

Fly Agaric (detail) ? Marshmallow Laser Feast

Life

Striking artworks reveal the beauty of mushrooms and other soil life

A new exhibition at Somerset House in London, SOIL: The World at Our Feet, wants us to rediscover how key soil is to our lives and to the planet鈥檚 future

Regulars

Features

When did time begin? Hint: It wasn鈥檛 at the big bang

Space

When did time begin? Hint: It wasn鈥檛 at the big bang

You may think that time started 13.8 billion years ago at the birth of the universe, but physicists with alternative definitions of time have other ideas

Features

Space

When did the first galaxies form? Earlier than we thought possible

Features

Life

When did life begin on Earth? New evidence reveals a shocking story

Features

Earth

We are finally getting to grips with how plate tectonics started

Features

Humans

Why it鈥檚 so hard to tell when Homo sapiens became a distinct species

Features

Humans

We鈥檙e uncovering a radically different view of civilisation鈥檚 origins

Features

Environment

Why geologists can鈥檛 agree on when the Anthropocene Epoch began

Features

Mind

From headaches to tics, how mass nocebo effects spread real symptoms

Features

Culture

Welcome to Hawaii's 'plastic beach', one of the world's dirtiest places. Hawaii has long evoked images of a Pacific paradise but Kamilo Beach, located on the Big Island, presents a starkly different reality. Hawaii??s efforts to push back on rampant plastics consumption have been among the boldest in the country. ?? Liz Barney / Guardian / eyevine Contact eyevine for more information about using this image: T: +44 (0) 20 8709 8709 E: info@eyevine.com http://www.eyevine.com

Earth

In millions of years, what could a future civilisation learn about us?

Millions of years after humans vanish, fossil clues showing how we lived and dominated the planet may confuse future civilisations, says a new book by Sarah Gabbott and Jan Zalasiewicz

Culture

Mind

Riveting case studies reveal how neurology shapes who we are

Culture

Technology

51动漫 recommends 13 Ways of Looking at AI, Art & Music

Culture

Technology

Robot Iris turns out to be a straw man in horror-comedy Companion

Culture

More

Why exercising outdoors is better for your health

Health

Why exercising outdoors is better for your health

Numerous studies have found that exercising outside has a slight edge on boosting both our physical and mental health, even when the conditions outside are less than ideal

Regulars

Physics

How does astronomy fit into astrophysics 鈥 and does it matter?

Comment

BrainTwister #61: Mark to mark

Regulars

Technology

Why I'm deeply sceptical about comparisons between humans and machines

Comment

Tom Gauld: Do you have a spare minute, professor?

Regulars

Twisteddoodles: science, but gossipy

Regulars

Regulars

Jack the Ripper and the case of the missing DNA evidence

Comment

Jack the Ripper and the case of the missing DNA evidence

In Feedback's true crime exclusive, we look into calls for a fresh inquest into the murder of Catherine Eddowes in the 19th century 鈥 and discover that a rather crucial part of the puzzle may be missing

Regulars

Regulars

Letters

Regulars

The last word

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