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Exotic roto-crystals can break into individual fragments then reassemble themselves

It sounds bizarre, but they exist: crystals made of rotating objects. Physicists from Aachen, Düsseldorf, Mainz and Wayne State (Detroit, U.S.) have jointly studied these exotic objects and their properties. They easily break into individual fragments, have odd grain boundaries and evidence defects that can be controlled in a targeted fashion.

In an article published in the Proceedings of the National Academy of Sciences, the researchers outline how several new properties of such transverse interaction systems can be predicted by applying a comprehensive theory.

Transverse forces can occur in synthetic systems, such as in certain magnetic solids. They exist in systems of living organisms too, however. In an experiment observing a host of starfish embryos conducted at American university MIT, it was found that, through their swimming movements, the embryos influence each other in a manner leading them to rotate around one another.

Oxford Physicists Simulate Quantum “Light from Darkness” for the First Time

Scientists have created the first real-time 3D simulations of how lasers alter the quantum vacuum. Using cutting-edge computational modeling, scientists from the University of Oxford, in collaboration with the Instituto Superior Técnico at the University of Lisbon, have successfully produced the fi

CISA confirms hackers exploited Oracle E-Business Suite SSRF flaw

CISA has confirmed that an Oracle E-Business Suite flaw tracked as CVE-2025–61884 is being exploited in attacks, adding it to its Known Exploited Vulnerabilities catalog.

BleepingComputer previously reported that CVE-2025–61884 is an unauthenticated server-side request forgery (SSRF) vulnerability in the Oracle Configurator runtime component, which was linked to a leaked exploit used in July attacks.

The US cybersecurity agency is now requiring federal agencies to patch the security vulnerability by November 10, 2025.

Over 75,000 WatchGuard security devices vulnerable to critical RCE

Nearly 76,000 WatchGuard Firebox network security appliances are exposed on the public web and still vulnerable to a critical issue (CVE-2025–9242) that could allow a remote attacker to execute code without authentication.

Firebox devices act as a central defense hub that controls traffic between internal and external networks, providing protection through policy management, security services, VPN, and real-time real-time visibility through WatchGuard Cloud.

Scans from The Shadowserver Foundation currently show that there are 75,835 vulnerable Firebox appliances across the world, most of them in Europe and North America.

JWST may have found the Universe’s first stars powered by dark matter

New observations from the James Webb Space Telescope hint that the universe’s first stars might not have been ordinary fusion-powered suns, but enormous “supermassive dark stars” powered by dark matter annihilation. These colossal, luminous hydrogen-and-helium spheres may explain both the existence of unexpectedly bright early galaxies and the origin of the first supermassive black holes.

In the early universe, a few hundred million years after the Big Bang, the first stars emerged from vast, untouched clouds of hydrogen and helium. Recent observations from the James Webb Space Telescope (JWST) suggest that some of these early stars may have been unlike the familiar (nuclear fusion-powered) stars that astronomers have studied for centuries. A new study led by Cosmin Ilie of Colgate University, together with Shafaat Mahmud (Colgate ’26), Jillian Paulin (Colgate ’23) at the University of Pennsylvania, and Katherine Freese at The University of Texas at Austin, has identified four extremely distant objects whose appearance and spectral signatures match what scientists expect from supermassive dark stars.

“Supermassive dark stars are extremely bright, giant, yet puffy clouds made primarily out of hydrogen and helium, which are supported against gravitational collapse by the minute amounts of self-annihilating dark matter inside them,” Ilie said. Supermassive dark stars and their black hole remnants could be key to solving two recent astronomical puzzles: i. the larger than expected extremely bright, yet compact, very distant galaxies observed with JWST, and ii. the origin of the supermassive black holes powering the most distant quasars observed.

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