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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.

Technology

AIs get worse at answering simple questions as they get bigger

Using more training data and computational power is meant to make AIs more reliable, but tests suggest large language models actually get less reliable as they grow

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Humans

World’s oldest cheese found on 3500-year-old Chinese mummies

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Technology

Smart TVs take snapshots of what you watch multiple times per second

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The hormone and neurotransmitter dopamine interacting with its receptor

Health

Pain relief from the placebo effect may not actually involve dopamine

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Life

Axolotls seem to pause their biological clocks and stop ageing

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Environment

Are superconducting power lines the key to a cleaner grid?

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Humans

AI discovers hundreds of ancient Nazca drawings in Peruvian desert

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Health

Children with cancer may benefit from having a cat or dog ‘pen pal’

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A day octopus hunting with a blue goatfish

Life

Octopuses and fish hunt as a team to catch more prey

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Environment

Forests became less diverse when ancient people started herding pigs

Ancient DNA extracted from layers of sediment in a Czech forest shows how a drop in biodiversity coincided with a shift to pig herding about 4000 years ago

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Environment

Plan to refreeze Arctic sea ice shows promise in first tests

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Technology

An AI can beat CAPTCHA tests 100 per cent of the time

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Health

What to know about the new covid-19 XEC variant

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Earth

Why physicists are air-dropping buoys into the paths of hurricanes

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