Archaeology

Rings forged from meteorites may have been fashionable among ancient Greek elites

Meteorites provided a rare but ready source of iron for ancient Bronze Age cultures before smelting became common. A new study, published in the Journal of Archaeological Science, sheds light on how the ancient Minoan and ...

Environment

EU cities plan to compensate for a fifth of their emissions through carbon removal, but few have thought through how

An analysis of 103 European cities' climate-neutral plans for 2030 (including 22 capital cities) shows that municipalities are planning to rely on carbon removal to compensate for about a fifth of their emissions. This would ...

Early hardship may shape how oxytocin influences altruism

While humans are inherently social beings, they can interact and connect with others in very different ways. For instance, while some people tend to be more altruistic, others are less prone to helping their friends, acquaintances ...

A new target in the gut for reducing Alzheimer's risk

A compound produced by bacteria in many people's digestive tracts increases the risk of developing Alzheimer's disease and speeds cognitive decline in dementia patients, making it a potential target for a treatment that could ...

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Tech Xplore

Active supermassive black holes may help form massive planets

A popular myth about black holes is that they act like giant cosmic vacuum cleaners, sucking in everything around them. But Wladimir Lyra's research found a new mechanism around supermassive black holes that is more like ...

Electric fields offer new hope against aggressive brain cancer

More than a decade ago, Dr. Matthew Hebb was treating patients with Parkinson's disease using deep brain stimulation by implanting tiny electrodes into the brain and delivering electrical signals to control tremors. He wondered ...

Butterfly effects of climate change

The Australian National Insect Collection at CSIRO holds 2,000 drawers of butterfly specimens, including some that were collected more than a century ago.

Europe swelters under fresh wave of extreme heat

Millions of people across Europe—particularly in France, Italy, Spain and Britain—baked through a new wave of extreme temperatures Thursday as the continent's latest heat wave picked up.

A new way to watch heat move through electronics

The same overheating problem that happens to our laptops also plagues computer servers and data centers around the world—and heat management is only getting harder as computer chips get more compact and powerful.

Low-cost, rare-earth-free material for carbon recycling

To improve carbon recycling and reduce emissions, researchers at Science Tokyo developed iron-substituted calcium titanate (Fe-doped CaTiO3) as an environmentally friendly support material for chemical looping, a process ...