This week's magazine
27 July 2024
Issue 3501
On the cover
Editor's picks
Health
When is the best time to exercise to get the most from your workout?
Health
The remarkable science-backed ways to get fit as fast as possible
Health
Why slow running could be even more beneficial than running fast
Health
What is the optimal amount of exercise and how much is too much?
Health
How to use psychology to hack your mind and fall in love with exercise
Health
How fast do we get out of shape and is there a way to slow the loss?
Health
How much exercise do children really need – and what type?
Health
If your gym instructor is an iPad, what is lost – and gained?
Table of contents
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Earth
Shock discovery reveals deep sea nodules are a source of oxygen
Sea-floor nodules raise oxygen levels in the deep ocean, suggesting they may have a valuable role in ecosystems and adding to concerns about the impact of deep-sea mining
Environment
Green belts around cities help keep them cool
Space
NASA’s cancelled moon rover calls 2026 crewed landing into question
Space
Universe’s missing matter may be explained by galaxies leaking gas
Health
Covid-19 hit women harder than men in India, unlike most of the world
Physics
How to unsnarl a tangle of threads, according to physics
Mind
From Pearl Jam to Dolly Parton, how musicians’ tempos change over time
Life
Sea slugs discovered working together to hunt in packs
Technology
Robot dog can stifle weeds by blasting them with a blowtorch
Space
A new formula for defining a planet still keeps Pluto out of the club
Space
Zombie galaxy came back to life after 20 million years
Health
Retinol’s anti-ageing effects may work by changing your skin microbes
Life
Chimps respond to each other at a pace similar to human conversation
Technology
Chinese nuclear reactor is completely meltdown-proof
Life
Watch bees defend their nest by slapping ants with their wings
Space
Moon of Saturn has an equivalent of freshwater rivers and salty oceans
Technology
Many people think AI is already sentient – and that’s a big problem
Chemistry
Hydrogel can preserve medications for weeks outside of a fridge
Humans
Butchered bones hint humans were in South America 21,000 years ago
Technology
Tiny solar-powered drones could stay in the air forever
Technology
Is sharing your smartphone PIN part of a healthy relationship?
Environment
Hurricane forecasts are improving – but big misses are still possible
Features
Health
How much exercise do children really need – and what type?
Better fitness in children is linked to better cognition and health in later life, but the majority in the US and UK don't get nearly enough. Here's what parents can do
Health
How fast do we get out of shape and is there a way to slow the loss?
Health
How to use psychology to hack your mind and fall in love with exercise
Health
Why slow running could be even more beneficial than running fast
Health
If your gym instructor is an iPad, what is lost – and gained?
Health
What is the optimal amount of exercise and how much is too much?
Health
When is the best time to exercise to get the most from your workout?
Health
The remarkable science-backed ways to get fit as fast as possible
Culture
Technology
A skilful primer makes sense of the mathematics beneath AI’s hood
Anil Ananthaswamy's Why Machines Learn: The elegant maths behind modern AI explores the mechanics of the AI revolution, but doesn't examine its ethics
Mind
¿ìè¶ÌÊÓÆµ recommends: Pixar’s Inside Out 2
Mind
Nine profiles of neurodiverse people reveal rich and creative worlds
Technology
Period atmosphere is best part of game set on turbulent oil rig
More
Space
What happens at a black hole’s edge? It depends on your perspective
To find out what happens at the centre of a black hole, we may need to consider its event horizon - and think about where we're looking from, says Chanda Prescod-Weinstein
Mind
Are there times when we should cut ties with a toxic family member?
Tom Gauld on how to invent a subatomic particle
Twisteddoodles suggests a way to prevent catastrophe
Regulars
How a spot of coral cosplay helped put marine pollution on the map
Feedback is amused that marine researchers worried about microplastics dressed up as coral polyps and a Greek sea goddess to visit a Comic-Con. Their awareness-raising went down a storm