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Astrophysicists have long been intrigued by the possibility of dark stars-massive celestial objects fueled not by nuclear fusion but by the enigmatic energy of dark matter. Thanks to images taken by the James Webb Space Telescope (JWST), the scientific community has perhaps also found signs of such elusive entities. Could these dark stars, which shine billions of times brighter than our sun, rewrite the story of the universe’s infancy?

Dark stars, despite the word “dark”, are hypothesized luminous sources that may have existed in the universe’s infancy. In contrast to traditional stars that work with nuclear fusion, dark stars are speculated to obtain their energy from self-annihilation of dark matter particles.

As a result, energy is released that warms the ambient hydrogen and helium, and this leads the primordial clouds to glow brightly and expand to enormous scale-some up to a million times mass of the sun. These stars may have also been born in “minihaloes”, dense pockets of dark matter in the early universe.

The rising trend of early-onset cancers in adults under 50, particularly women, is alarming. Genetic, lifestyle, and environmental factors contribute to this increase. Maintaining a healthy weight, quitting tobacco, avoiding alcohol, consuming fiber-rich foods, using sunscreen, and regular physical activity are small lifestyle changes that can significantly reduce cancer risk.

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Timestamps:
00:00 — New computing paradigm.
10:02 — How this new chip works.

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In future, doctors hope the technology could revolutionise the treatment of conditions such as depression, addiction, OCD and epilepsy by rebalancing disrupted patterns of brain activity.

Jacques Carolan, Aria’s programme director, said: “Neurotechnologies can help a much broader range of people than we thought. Helping with treatment resistant depression, epilepsy, addiction, eating disorders, that is the huge opportunity here. We are at a turning point in both the conditions we hope we can treat and the new types of technologies emerging to do that.”

The trial follows rapid advances in brain-computer-interface (BCI) technology, with Elon Musk’s company Neuralink launching a clinical trial in paralysis patients last year and another study restoring communication to stroke patients by translating their thoughts directly into speech.

A research team from NIMS and the Japan Fine Ceramics Center (JFCC) has developed a next-generation AI device—a hardware component for AI systems—that incorporates an iono-magnonic reservoir. This reservoir controls spin waves (collective excitations of electron spins in magnetic materials), ion dynamics and their interactions.

The work is published in the journal Advanced Science.

The technology demonstrated significantly higher information processing performance than conventional physical computing devices, underscoring its potential to transform AI technologies.

When burned or used in fuel cells, hydrogen produces nothing but water, making it an ideal candidate for reducing global carbon emissions. Yet, most of the hydrogen produced today comes from fossil fuels, releasing significant amounts of carbon dioxide into the atmosphere. But now, researchers may have found a way to create carbon-free hydrogen.

A group of researchers, led by Professors Takashi Hisatomi and Kazunari Domen, built a 100-square-meter reactor that uses sunlight and photocatalysts to split water into hydrogen and oxygen. This process bypasses traditional photovoltaic-based methods, which convert sunlight into electricity before splitting water.

The new process relies on sheets of a photocatalyst called SrTiO3:Al, which are submerged in water. Sunlight activates the photocatalyst, splitting water into its molecular components. The gases can then be collected for storage and use. Because it utilizes sunlight for power, this method creates clean, carbon-free hydrogen.

Oregon’s Cascade Range is not just a scenic landscape of volcanic peaks – it also hides a massive underground aquifer filled with water.

Scientists from the University of Oregon and their collaborators have mapped this extensive water storage beneath the central Oregon Cascades and found it to be at least 81 cubic kilometers in size.

This discovery is significant because it reveals a water resource nearly three times the capacity of Lake Mead and more than half the volume of Lake Tahoe, reshaping our understanding of regional water supplies and volcanic processes.