This week's magazine
22 July 2023
Issue 3448
On the cover
Editor's picks
Table of contents
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Mind
Brain scans are putting a major theory of consciousness to the test
A proposed way to measure consciousness called integrated information theory has been tested using data from human brain scans, and seems to work
Physics
Bizarre portal-like ‘ring wormholes’ could let you time travel
Life
Ancient alligator had a stubby snout and may have chomped on snails
Life
Pigs open doors to free companions in a possible show of empathy
Technology
What is xAI, Elon Musk’s new AI company, and will it succeed?
Life
Llamas solve problems faster after watching people do it
Technology
Using bigger AI training data sets may produce more racist results
Environment
Bolivia’s surging deforestation alarms environmentalists
Health
Nerve pain from diabetes can be treated with faecal transplants
Mathematics
Decade-long struggle over maths proof could be decided by $1m prize
Space
Stars found hidden in huge cloud wrapped around the Milky Way
Health
Discovery of wrinkle-causing molecules could lead to new cosmetics
Health
Giving birth at an older age is linked to a longer life in women
Space
Meteorite left Earth then landed back down after round trip to space
Life
Bone disease in sabre-toothed tigers may be a sign of inbreeding
Environment
Carbon tax on luxuries is fairer way to cut emissions, finds analysis
Technology
Quantum twist on common computer algorithm promises useful speed boost
Life
Birds from two different species raise chicks together in one nest
Health
Malaria vaccine shows promise against relapsing form of the disease
Life
Early humans made jewellery from giant sloth bones
Life
Some sea snakes have re-evolved the ability to see more colours
Technology
Blanket for electric cars helps preserve battery performance
Analysis
Environment
How can we keep homes cool in extreme heat without air conditioning?
Many northern countries including the UK must adapt homes to cope with hot weather, a study warns – but there are ways to do this without increasing energy use
Society
Conspiracy theories are the new pandemic infecting public life
Society
Who is researching and shaping science is more crucial than ever
Features
Mind
Revealed: What your thoughts look like and how they compare to others’
We finally have a grasp on the many different ways of thinking and how your inner mindscape affects your experience of reality
Physics
Five of the biggest unanswered questions about the proton
Health
Placenta: The overlooked organ with a lifelong impact on your health
Culture
Technology
Kagami review: Mixed-reality gig brings dead headliner back to life
Kagami, a mixed-reality concert at this year's Manchester International Festival, shows the fresh challenges and possibilities of state-of-the-art tech
Comment
Blight review: The threat of a fungi-fuelled pandemic
Comment
¿ìè¶ÌÊÓÆµ recommends: Tomorrow, and Tomorrow, and Tomorrow
Comment
The Saint of Bright Doors review: Fine debut probes nature of memory
Comment
Oppenheimer review: Great film goes to the heart of atomic warfare
Comment
The Other Pandemic review: Can smart reframing fight conspiracies?
More
Life
Why putting broken pottery in your plant pot won’t help with drainage
Putting a layer of "crocks", or broken pottery, in the base of flower pots won't improve drainage – and may actually worsen it, says James Wong
Tom Gauld on magic mirrors
Twisteddoodles on chemical reactions
Regulars
Have bite-mark forensics bitten the dust?
Feedback looks at the looking into of who (human and shark) bit what (shark and human)