Technology
Killer robots: It's time to decide who pulls the trigger
Opinion
This week's magazine
Table of contents
Leaders
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Mathematics
Mathematicians invent new way to slice pizza into exotic shapes
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Technology
First ever pictures of single proteins thanks to graphene sheet
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Life
Impulsive people may have less free will than the rest of us
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Space
Famous Wow! signal might have been from comets, not aliens
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Space
Philae lander fails to respond to last-ditch efforts to wake it
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Technology
The firms who will beat Google to get us into self-driving cars
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Life
Sound of your own voice may help you understand your emotions
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Space
New rumours that gravitational waves have finally been detected
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Earth
California's massive methane leak prompts action to capture it
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Life
Shark virgin births seen in two generations for the first time
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Life
Global watchdog needed to spot the next Ebola-like outbreak
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Icy find under comet 67P's skin could make sense of its origins
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Space
Time might flow backwards as well as forwards from the big bang
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Earth
Climate change credibility tool shows what news you can trust
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Male spiders lure aggressive females with peek-a-boo paddle game
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‘Locked-in' people show signs of awareness with maths puzzles
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Technology
One Per Cent
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Environment
60 Seconds
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Mind
US and UK update recommendations on sugar and alcohol
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Life
Peterborough Pompeii rises from the ashes after 3000 years
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Mind
MPs suggest smart drugs and nutmeg for exemption from drugs law
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Your gut's trick for controlling the bacteria that live in it
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