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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.

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Mind

How the US used science to wage psychological war

The US has been honing its psychological warfare skills since the 19th century, when it started sending anthropologists onto battlefields, says Annalee Newitz

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Environment

Why a new literary prize for climate fiction will make a difference

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Health

Why it’s vital we fight prejudices about the elderly once and for all

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Technology

OpenAI overtakes Google in race to build the future, but who wants it?

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Technology

Quantum internet draws near thanks to entangled memory breakthroughs

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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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Technology

Buildings that include weak points on purpose withstand more damage

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Environment

Will sucking carbon from air ever really help tackle climate change?

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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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Thawed brain organoids shown via the imaging technique immunofluorescence staining

Health

Frozen human brain tissue can now be revived without damage

Using a new approach, scientists have successfully frozen and thawed brain organoids and cubes of brain tissue from someone with epilepsy, which could enable better research into neurological conditions

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Life

Experience the world from a bee’s perspective

Video

Humans

Why did hominins like us evolve at all?

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Environment

Huge jellyfish invasion could disrupt Arctic ecosystems as waters warm

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Health

One-day mental health workshop improves teenagers’ mood for six months

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