A device that has been likened to a pacemaker for the brain has given a man with severe depression great relief

Collecting the materials needed for renewable technologies is causing enormous environmental damage and could soon extend to the deep sea and even asteroids. Innovative solutions are poised to turn the crisis around

Directing radio waves at the olfactory system deep within our head seems to boost our ability to detect different smells

Carbon dioxide levels in the atmosphere have risen an extra 15 parts per million since 1960 due to the declining ability of the land and sea to soak up excess CO2

Many answers to online research questions show signs of being generated by AI chatbots, raising doubts about the validity of behavioural data collected this way

A six-week period of extraordinary heat in 2024 melted 62 gigatonnes of ice on the Arctic archipelago of Svalbard, obliterating all previous melt records

From depression to dementia, we are now realising the profound impacts of long-term inflammation on the brain. A better understanding of the underlying mechanisms is unlocking new treatments to protect our cognitive function and mental health

Nine species of fungi and bacteria have been found in cocoa beans that produce fine chocolate, and this knowledge could help producers develop better flavours

Defining the fundamental units of electricity used to require two finicky quantum devices – but now scientists have found an easier way to standardise our electrical measurements

The record-breaking global temperatures seen in late 2023 may have emerged partly because of unusual conditions in the Pacific Ocean in the preceding years

Large dark matter particles hitting Jupiter’s largest moon would form distinctive craters in its icy surface, and upcoming space missions might be able to spot them

Women's arteries seem to be stiffer if they have had covid-19, with the same effect not being found among men