This week's magazine
9 February 2019
Issue 3216
On the cover
Editor's picks
Features
Earth
The instability of past ecosystems shows we must cut emissions now
News
Physics
5 of the world’s toughest unsolved maths problems
Features
Physics
The baffling quantum maths solution it took 10 years to understand
Features
Humans
Cosy up with the Neanderthals, the first humans to make a house a home
Features
Humans
The truth about generations: Why millennials aren’t special snowflakes
Features
Health
Confused about cancer? Here’s what we really do know about its causes
Features
Table of contents
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Technology
It now costs more to make bitcoin than the cryptocurrency is worth
Producing a single bitcoin now costs $4060 on average, but it is currently valued at less than $3500
News
Technology
US and Russia face nuclear arms race as both threaten key treaty
News
Health
Women seem to have younger brains than men the same age
News
Environment
Climate change is making it harder to grow fruit and vegetables
News
Earth
How Earth’s changing ecosystems may have driven human evolution
News
Space
Here’s how we could turn an asteroid into a space station
News
Health
We’ve only just found out exactly how sperm wiggle their tails to swim
News
Life
The ancestor of all creatures on Earth lived a lukewarm lifestyle
News
Technology
Mind-controlled robot lets you weld metal without using your hands
News
Mind
¿ìè¶ÌÊÓÆµs studied a ‘haunted house’ to understand why we love horror
News
Space
The Milky Way may be slowly devouring a hidden neighbouring galaxy
News
Health
Epigenetic testing firms claim to help you live a healthier lifestyle
News
Health
Your gut bacteria may match your blood group – but we don’t know why
News
Life
Using CRISPR to stop male calves being born may lower animal suffering
News
Mind
Teenagers who copy each other’s risk-taking have more friends
News
Space
Black holes eat negative energy and vomit out huge powerful jets
News
Health
People with depression are less likely to have certain gut bacteria
News
Environment
Virus lurking inside banana genome has been destroyed with CRISPR
News
Humans
Vaping beats nicotine gum at helping people quit smoking
News
Health
Mind-reading implant can decode what your ears are hearing
News
Environment
Seismic boom may explain why 2018 Palu earthquake was so devastating
News
Space
We’ve hacked the Curiosity rover to learn how mountains form on Mars
News
Physics
Self-growing material could make muscles that become stronger with use
News
Environment
Scuba-diving gear could help clean up carbon dioxide from power plants
News
Analysis
Comment
Deep-sea mining could wreck the last unexplored ecosystem on Earth
As mining firms begin tests to pick up metal ores from the Pacific seabed, we need rules to protect this unusual ecosystem, says Olive Heffernan
News
Comment
Loot boxes in games like Fortnite are gambling and should be regulated
News
Health
Will rising food costs after Brexit really cause thousands of deaths?
News
Features
Humans
The truth about generations: Why millennials aren’t special snowflakes
We increasingly form opinions about people based on the generation they belong to, but these labels are often lacking in science
Features
Humans
Cosy up with the Neanderthals, the first humans to make a house a home
Features
Health
Confused about cancer? Here’s what we really do know about its causes
Features
Physics
5 of the world’s toughest unsolved maths problems
Features
Physics
The baffling quantum maths solution it took 10 years to understand
Features
Culture
Mind
Prototyping in Tokyo review – Imagining a future full of lifelike tech
Is art more likely than old-school engineering to create the lifelike quality we will need in a world we share with machines? A robot show has surprising answers
Culture
Health
Don’t miss: Exploring your own delusions, playing with evolution
Culture
Life
Orchids at Kew Gardens review – celebrating the colour of Colombia
Culture
Regulars
Feedback: Paying through the nose for someone’s used tissues
Feedback is our weekly column of bizarre stories, implausible advertising claims, confusing instructions and more
This Week’s Letters
Letters
You say tomato
Last Word
Many ridges to cross
Last Word
Skipping time
Last Word
Molar twinge
Last Word