Earth
Plankton can save the ocean. But who will save the plankton?
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This week's magazine
On the cover
Editor's picks
Earth
Trump's assault on climate science will not make America great
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Humans
Emotions are not universal – we build them for ourselves
Features
Physics
The string-loop theory that might finally untangle the universe
Features
Health
Good hydrations: Are health drinks healthy?
Features
Health
Good hydrations: Is tea or coffee better for you?
Features
Health
Good hydrations: Does milk make healthy brains and bones?
Features
Health
Good hydrations: Is fruit juice better than soda?
Features
Health
Good hydrations: Do I need eight glasses of water a day?
Features
Good hydrations: Is there a safe level of alcohol?
Features
Table of contents
Leaders
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Technology
Facebook is testing AI tools to help prevent suicide
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Life
Elephants sleep for just 2 hours a day – the least of any mammal
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Earth
First yearly CO2 forecast predicts one of biggest rises ever
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Health
Autoimmune disorders linked to an increased risk of dementia
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Technology
Empathy device lets a friend’s brain signals move your hand
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Life
Climbing plants use taste to avoid clinging to other weak vines
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Technology
Why the dark net is more resilient to attack than the internet
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Health
Artificial embryo grown in a dish from two types of stem cells
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Technology
Image recognition app scans paintings to act like Shazam for art
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Earth
Sponge can soak up and release spilled oil hundreds of times
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Life
Stubborn wasp queens pass their personality on to their colony
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Life
WW2 bomb craters are a home to rare and vulnerable animals
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Technology
Super-fast Parkinson's app will track symptoms more closely
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Technology
Humans control robots with their minds by watching for mistakes
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Health
Brain’s reward system earns researchers €1 million prize
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Life
Brighter sky helped boost US crop yields – but it may not last
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Space
Moon's hidden craters detected by gravity mapper
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Earth
UK’s CO2 emissions lowest since 19th century as coal use falls
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Health
Brain’s inability to see that something is safe causes OCD
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Earth
Deep cuts to environmental research in Trump’s budget proposal
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Humans
Older people are just as good at judging music as younger adults
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Humans
Neanderthals may have medicated with penicillin and painkillers
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Health
Best anti-ageing exercise is high intensity interval training
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Space
Oldest, biggest black holes may have come from enormous stars
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Space
China's new rocket makes its debut flight into space
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60 Seconds
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Health
Warmer weather could bring fresh Zika misery
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Physics
Fuzzy pulsars orbiting black holes could unmask quantum gravity
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Health
Millions raised for women’s health after Trump’s abortion gag
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