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Physics

Hybrid design could make nuclear fusion reactors more efficient

Two types of fusion reactor called tokamaks and stellarators both have drawbacks – but a new design combining parts from both could offer the best of both worlds

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Environment

Virtual power plants could ease growing strain on US electric grid

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Thermal-trapping device reaching 1050 degrees Celsius CREDIT Device/Casati et al. USAGE RESTRICTIONS Credit must be given to the creator. Adaptations must be shared under the same terms.

Physics

Sunlight-trapping device can generate temperatures over 1000°C

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EKXM2R Groundwater well and standpipe for crop irrigation. Porterville, Tulare County, San Joaquin Valley, California, USA

Environment

Around half the world could lose easily accessible groundwater by 2050

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We are about to hear echoes in the fabric of space for the first time

Space

We are about to hear echoes in the fabric of space for the first time

Features

A slice through the largest 3D map of our universe to date

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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View Los Angeles financial district skyline at night

Environment

The shift to LED lighting is stopping us from seeing our night skies

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A worker inside the vacuum vessel of the DIII-D fusion reactor

Physics

Nuclear fusion experiment overcomes two key operating hurdles

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Environment

Wind turbines based on condor wings could capture more energy

Curved wing tips inspired by the world's heaviest flying bird could enhance the efficiency of wind turbines by of 10 per cent, according to simulations

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Earth

Geoscientists are using telecom 'dark fibres' to map Earth’s innards

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Space

There are hints that dark energy may be getting weaker

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Environment

Five climate megaprojects that might just save the world

Features

Environment

Storm-proofing 1% of power lines protects entire grid from blackouts

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