Environment
The 2000-watt energy saving challenge may be hard, but it’s worthwhile
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This week's magazine
On the cover
Table of contents
Leaders
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Health
Sperm-sorting device aims to find healthy samples to boost IVF success
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Physics
Entirely new type of ice made using extremely cold steel balls
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Environment
Doubling trees in European cities could prevent thousands of deaths
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Environment
US megadrought has led to more air pollution from power plants
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Technology
Google AI generates musical backing tracks to accompany singers
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Technology
Diving drone can switch between flying and swimming
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Life
Smart dairy farms are using AI scanners to monitor cows' health
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Health
Hearing noise and moving our body helps us gauge the passing of time
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Life
Putting solar panels in grazing fields is good for sheep
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Technology
US military plan to create huge autonomous drone swarms sparks concern
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Humans
Neanderthals hunted enormous elephants that fed 100 people for a month
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Humans
Ancient Egyptians used exotic oils from distant lands to make mummies
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Humans
Vikings brought horses and dogs to England, cremated bones confirm
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Health
Antidepressants mostly can't treat chronic pain, despite wide use
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Space
Sunquakes may be caused by weird beams of electrons from solar flares
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Life
Should we be worried about bird flu spreading to mammals?
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Health
Human neurons implanted into a rat's brain respond to flashing lights
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Space
Wormholes could magnify light by a factor of 100,000
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Health
Millions of coronavirus mutations offer a new insight into evolution
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Life
Three nautilus species new to science have been found in the Pacific
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Technology
Suspected Chinese 'spy balloon' shot down by US fighter jet over sea
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Mind
Mild brain damage may affect memory more than severe injuries
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Technology
AI image generators that create close copies could be a legal headache
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Health
Genes for Gaucher disease may have protected Jewish people against TB
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