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Explore the most exciting new ideas and emerging concepts in science, health, technology and the environment with 91av’s exclusive in-depth articles, interviews and long reads.

Environment

Sprinkling limestone on farms may offer an unexpected climate win

Farms commonly spread crushed limestone on fields to make the soil less acidic – and this practice can also help remove carbon dioxide from the atmosphere

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Health

Four-day working week may boost our health and performance at work

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Life

Octopuses fall for the rubber hand illusion just like us

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Technology

Should we preserve the pre-AI internet before it is contaminated?

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Space

Immortal stars could live forever by ‘eating’ dark matter

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Health

Your chance of having a boy or girl may not be 50/50

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Life

Exposure to microplastic makes animals want to eat it more

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2K6ERBY Flock of sheeps moving down the valley, French Alps, border with Switzerland

Environment

Ranching and farming have eroded almost all the soil in the Alps

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Physics

Laws of quantum physics may rule out a universe that came before ours

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Health

Obesity may come in 11 different types, each with their own cause

Obesity could exist in many forms, which may benefit from different treatments and prevention strategies

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Environment

Is it time to aim for 1.7°C as the new limit for global warming?

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Space

Little red dot galaxies have now been found in our local universe

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Space

Adam Roberts’s Lake of Darkness is a quest to understand utopia itself

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Environment

AI demand could drive up US electricity bills – even if it fizzles

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