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Technology

Superheated steam dishwasher could kill bacteria in just 25 seconds

Computer simulations of a simplified dishwasher that uses hot, dry steam and no detergent found that it could kill all heat-resistant bacteria on a plate in under half a minute – but it might not actually clean your dishes

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Close up of a model's hands washing dishes in steaming hot water with dark blue rubber gloves with anit-drip cuffs

Environment

Half of newly irrigated land is in water-stressed areas

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A wide angle view shows piping laid along ten vegetable crop rows to irrigate with slow drips. Small green plants have sprouted along the rows.

Space

NASA's InSight Mars lander found surprisingly little underground ice

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The surface of Mars
People sitting on parched grass in Greenwich Park, London

Environment

With drought in England more frequent, how can it keep water flowing?

Analysis

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A 3d-printed model enters the water

Physics

Physicists calculate highest dives most humans can safely withstand

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Drone with fish-inspired suction disc

Technology

Robot can fly, swim or hitch a ride by sticking to other objects

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Aerial view of river delta for River film

Video

River: New film shows Earth's waterways from stunning perspectives

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DNA computer

Technology

DNA computer could tell you if your drinking water is contaminated

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The Evenlode is a 75 kilometre-long river in the Cotswolds, England, plagued with water pollution in recent years. Aerial view of the Evenlode.

Environment

How a Cotswolds river may show the way to clean up England's waterways

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Space

Mysterious origin of Earth's water may be explained by solar wind

Evidence from asteroids shows that charged particles from the sun can turn dust grains into water – a process that could be useful for space exploration too

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Planet Earth and Sun. Elements of this image furnished by NASA.

Health

Legal lead levels in US tap water may harm people with kidney disease

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Environment

60 per cent of world’s rivers stop flowing for at least one day a year

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Environment

Switching beef for chicken could reduce water footprint of US diets

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Earth

Earthquakes in Taiwan are linked to seasonal changes in water levels

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