This week's magazine
27 November 2021
Issue 3362
On the cover
Editor's picks
Table of contents
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Health
What we know so far about AY.4.2 and other new coronavirus variants
The delta variant could be overtaken by AY.4.2, a more transmissible coronavirus variant that may be less likely to cause symptoms, while another variant from central Africa is being closely monitored
Environment
Tropical trees grow less in warmer years so they take in less CO2
Life
New Australopithecus sediba bones suggest extinct hominin was bipedal
Life
Hybrid salmon found in Canada may be a result of climate change
Mind
Body odour chemical makes men calmer but women more aggressive
Technology
Octopus-inspired camouflage fabric can change colour to blend in
Society
UK visa scheme for prize-winning scientists receives no applications
Health
Milk allergy could be treated with gradual exposure to baked milk
Technology
A radical cryptocurrency experiment nearly bought the US Constitution
Space
Astronomers have found a second trojan asteroid sharing Earth’s orbit
Health
Response to anaesthetic can predict if people will recover after coma
Technology
New plastic made from DNA is biodegradable and easy to recycle
Health
Cancer cells steal energy-generating parts from immune cells
Technology
Strobe weapons: What are they, who is using them and do they work?
Technology
Wikipedia tests AI for spotting contradictory claims in articles
Health
Analysis of earliest covid-19 cases points to Wuhan market as source
Physics
Strange quantum effect predicted 30 years ago has now been observed
Health
Calls to mental health helplines rose by a third in covid-19 lockdowns
Earth
Over three-quarters of the world’s vital carbon stores are unprotected
Space
Iodine-powered satellite successfully tested in space for first time
Health
Donated embryo offers rare glimpse of development after implantation
Technology
Robots can use their own whirring to echolocate and avoid collisions
Health
mRNA vaccine against tick bites could help prevent Lyme disease
Health
Some genes in the brain may make 100 different proteins
Analysis
Environment
Why green energy firm Bulb’s collapse is not a big blow for renewables
The collapse in the UK of green energy champion Bulb would seem to be a blow for the country's efforts to decarbonise, but the way that the UK's energy market works means investors are still likely to continue piling billions of pounds into new wind farms
Space
Anti-satellite weapons: Will further tests make space more dangerous?
Humans
Why maths should move on from the ancient Greeks
Technology
Tech companies don’t get science fiction – and that’s deeply troubling
Features
Humans
Survival of the friendliest? Why Homo sapiens outlived other humans
We once shared the planet with at least seven other types of human. Ironically, our success may have been due to our deepest vulnerability: being dependent on others
Earth
Black lava from this bizarre volcano could reveal Earth’s deep secrets
Environment
How to slash the shipping industry’s enormous carbon emissions
Culture
Technology
Break the Internet review: How influencers will take over the world
Don’t be too quick to write off influencers as vacuous kids, they are much more important than that, writes Olivia Yallop in her book Break the Internet: In pursuit of influence
Life
Animal review: Netflix’s immersive journey into nature is a must-see
Don’t miss: The Robinson family’s last stand in Lost in Space
Technology
Even Greater Mistakes review: Short sci-fi stories without the sexism
More
Space
Now is the perfect time to see dwarf planet Ceres for yourself
The only dwarf planet in the inner solar system, Ceres will be at its closest to Earth for a week from the end of November. Catch it while you can, says Abigail Beall
Twisteddoodles: The new incomprehensibility of computer-based jobs
Tom Gauld makes a deal with the devil, with a soupy twist
Regulars
Humans
The visionary university solving problems that don’t exist yet
Feedback is our weekly column of bizarre stories, implausible advertising claims, confusing instructions and more