Environment
Electricity prices in Europe are going negative - and that's bad
Analysis
dark energy
Space
Odd black holes smaller than protons may have once littered the cosmos
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Environment
Virtual power plants could ease growing strain on US electric grid
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Physics
Sunlight-trapping device can generate temperatures over 1000°C
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Environment
Around half the world could lose easily accessible groundwater by 2050
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Space
We are about to hear echoes in the fabric of space for the first time
Features
Space
How could we give boring blobby galaxies a new, exciting shape?
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Space
Invisible 'dark radiation' may explain a big problem with dark energy
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Environment
Renewables supply 30 per cent of global electricity for the first time
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Environment
The shift to LED lighting is stopping us from seeing our night skies
Comment
Physics
The galactic anomalies hinting dark matter is weirder than we thought
Features
Physics
Nuclear fusion experiment overcomes two key operating hurdles
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