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Test moderators use AI-generated writing to judge literacy standards

To cut the cost of key stage 2 assessments, a UK government project proposes to use scripts generated by ChatGPT instead of real children's writing as examples supplied to moderators who check that grades are awarded fairly

THC in cannabis may reduce nightmares in people with PTSD

A drug made up of THC, the main psychoactive component of cannabis, reduced the severity and incidence of nightmares in people with PTSD

Fishers detonate a bomb every hour on one Indonesian coral reef

The use of explosives to kill fish is widespread across the tropics, and acoustic monitoring in an Indonesian archipelago detected more than 3500 explosions in 483 days

How bad is the UK drought and how long will it continue?

Almost three-quarters of England is now in drought conditions, resulting in restrictions on water use in many areas and severe wildfires – here's how it's affecting farming, wildlife and trees

Monsoon-driven wildfires may have shaped human evolution

A reconstruction of East Africa's environment 1.75 million years ago suggests wildfires spiked during wetter times, which may have influenced human evolution

Why do people ask so few questions in conversation?

We've perhaps been conditioned to not ask too many questions, in case it comes across as rude or prying. But columnist David Robson argues that asking people open-ended questions benefits our wellbeing, and doesn't have to be complicated

‘Remarkable’ discovery upends our understanding of how brains store memories

Memories in mice persisted even after they lost the connections that we thought were needed for recall, expanding our knowledge of memory in the mammalian brain

DNA reveals a society organised around women in pre-Roman Britain

Descent passed from mother to daughter rather than from father to son, a study of more than 500 Iron Age individuals from north-east England suggests

Quantum entanglement is key to solving 250-year-old maths problem

Analysis of a mathematical puzzle that Leonhard Euler deemed unsolvable in the 1700s reveals that the crucial ingredient for cracking it after all is quantum entanglement

The most breathtaking photos of the total solar eclipse

Photographers in Spain captured spectacular images of the rare alignment of the moon and the sun, as it cast a dark shadow over much of the country