This week's magazine
17 June 2023
Issue 3443
On the cover
Editor's picks
Table of contents
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Health
We finally know what causes morning sickness during pregnancy
A hormone called GDF15 has been identified as the cause of nausea and vomiting during pregnancy, which should lead to ways to prevent and treat the most severe cases
Life
Male harbour seals may learn vocalisations years before they need them
Mind
Could your gut bacteria influence how intelligent you are?
Life
Alligators create hotspots for life by digging holes with their snouts
Health
Experimental treatment could work against prion diseases like CJD
Life
Life-extending parasite makes ants live at least three times longer
Technology
Couples collide with fewer people on walks than pairs of friends do
Life
Losing a leg in youth changes how male harvestmen woo females
Technology
DeepMind AI’s new way to sort objects could speed up global computing
Space
Fast-growing galaxy seen by JWST offers window on the early universe
Mind
How your brain stays focused on conversations in a noisy room
Physics
Sound-based quantum computers could be built using chip-sized device
Life
Male masturbation in primates evolved to cut chance of catching STIs
Health
Diabetes drug metformin may cut the risk of long covid by 41 per cent
Earth
Dried-up lake may explain why California is ‘overdue’ major earthquake
Space
Astronomers are using a new supernova to search for alien signals
Life
One-off injection may provide lifetime contraception for female cats
Physics
Extremely cold drop of helium can be levitated forever
Life
1.6-billion-year-old steroids may be traces of earliest complex life
Health
Taurine supplements extend lifespan and health in old age in mammals
Life
Octopuses edit their own genetic code to adapt to colder water
Technology
Robot gardener grows plants as well as humans do but uses less water
Mind
We know now what happens in our brain to make us scared of heights
Life
Crocodiles can reproduce without males – and maybe dinosaurs could too
Analysis
Environment
Concern about dirty air can galvanise the fight against climate change
Politicians think that climate policy is a vote loser because people see it as a "tomorrow" issue. But immediate worries about the air we breathe offer a way to shift the dial, says London's mayor Sadiq Khan
Technology
Robotics gets less attention than it should given its potential impact
Features
Health
How ultrasound therapy could treat everything from ageing to cancer
Ultrasound is most familiar to us as a non-invasive imaging technology used during pregnancy – now it is in clinical trials as a powerful new tool for treating all sorts of medical conditions
Space
What the huge young galaxies seen by JWST tell us about the universe
Humans
The unique, vanishing languages that hold secrets about how we think
Culture
Comment
Generations review: Zoomer, boomer, millennial – what’s your tribe?
For good or ill, dividing people up along generational lines with names and traits to fit seems hard to resist. What's going on, asks a new book that sets out to find the real differences
Comment
The Universe in a Box review: Why all cosmic quests start on laptops
Comment
¿ìè¶ÌÊÓÆµ recommends: Troll sculptures at Atlanta Botanical Garden
Comment
Wild life review: The couple who bought up Chile to conserve it
More
Life
Why used coffee grounds may be doing your plants more harm than good
We are often told to add used coffee grounds to garden soil to perk up plants. But the science doesn’t support this, says James Wong
Tom Gauld on a professor in disguise
Twisteddoodles on inventing a new type of washing pod
Regulars
An intellectually delicious recipe for electric meringue
Feedback explores a feat of dessert-based engineering cooked up by researchers in South Korea and the US, and ponders the true meaning of public relations