Self-regulating process governs cosmic order inside star clusters

A large number of small molecular clouds (left) cannot form the same population of stars as one very large cloud (right). – This has a significant influence on the evolution of galaxies. © Copyright: Eda Gjergo

A team of astrophysicists from Nanjing University and University of Bonn have demonstrated that, rather than being random, the mass of new stars born inside a star cluster is actually governed by a defined process of self-regulation. Their work has been published in the journal Research in Astronomy and Astrophysics.

How galaxy size shapes newborn stars
When a galaxy welcomes new stars, they are usually formed in star clusters inside vast gas clouds...

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Secret to a healthy liver found in a young microbiome

human microbiome inside gut
Credit: AI-generated image

Restoring the gut microbiome to its youthful state may hold the key to slowing aging and preventing liver cancer, one of the fastest-growing cancers worldwide, according to a study to be presented at Digestive Disease Week (DDW 2026).

Researchers collected fecal samples from eight young mice and transplanted them back into the same mice when they were older, a process called fecal microbiota transplantation, or FMT. The eight controls received sterilized fecal slurry, and a small group of similar young mice provided additional baseline data.

None of the mice with the restored microbiome developed liver cancer by the end of the study, while liver cancer was found in 2 out of 8 aging controls...

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AI has crossed a threshold. What Claude Mythos means for the future of cybersecurity

Frontier AI Sandbox
Credit: Image generated by the editorial team using AI for illustrative purposes.

The limit of what artificial intelligence can achieve, known as frontier AI, has crossed another threshold. AI can now plan and execute sophisticated cyber operations with minimal guidance at speeds far beyond human capability.

That, at least, is the evidence from an independent test of Claude Mythos Preview, the latest and most advanced model in the Claude family of AI systems, developed by US tech firm Anthropic. Similar to ChatGPT, these can understand and generate human-like text, analyze information, and solve complex problems.

The finance sector is alarmed. It relies on highly interconnected digital systems that are especially attractive targets for sophisticated cyber-attacks...

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3I/ATLAS contains 30 times more semi-heavy water than comets in our solar system

This artist’s impression compares the semi-heavy water content of the interstellar comet 3I/ATLAS (left) and Earth (right). Insets illustrate the relative abundance of deuterated water (HDO) molecules, showing that 3I/ATLAS contains over 30 times more HDO than is found in Earth’s oceans. This elevated ratio suggests the comet formed in an extremely cold environment, very different from the conditions that shaped our Solar System.
Credit: NSF/AUI/NSF NRAO/M.Weiss

New observations of the interstellar comet 3I/ATLAS include the first measurement of the abundance of deuterated water relative to ordinary water in an interstellar object...

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