Collapsing dark matter halos could seed supermassive black holes

Supermassive black holes are thought to grow slowly over billions of years – but how did they appear so early in the universe’s lifetime? A new origin story suggests black hole seeds were created by halos of self-interacting dark matter collapsing.

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“Graphene camera” images the electric field of a beating heart

Scientists have demonstrated yet another use for the ever-versatile wonder material graphene, using it as the basis for an advanced sensor that can image electrical signals from living cells and tissue in real time.

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Researchers discover how gut bacteria can influence stroke severity

A striking new gut-brain link has been discovered by researchers at the Cleveland Clinic. The findings show how a metabolite produced by gut bacteria can amplify the severity of a stroke and impair a person’s recovery.

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Astronomers conclude Betelgeuse isn’t dying, it’s just dusty

Astronomers say they’ve closed the case on the mysterious and unprecedented dimming of the supergiant star Betelgeuse in 2019 and 2020. A new study says that the event was caused by a combination of a big dust cloud and a drop in temperature.

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Surprising study shows how wind turbines can work better behind hills

To maximize the exposure of wind turbines, blades are placed atop tall towers on the crests of hills or miles off shore. But a new study has shown how turbines behind hills could actually produce higher amounts of energy than those out in the open.

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