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Strike a bell, and it rings with a pitch and a fading that tell you about the bell: its size, its shape, the metal it is made of. Black holes ring too. When two merge, the newborn black hole shivers and sheds gravitational waves in a brief, dying chord, and since 2015, gravitational-wave detectors have been listening. The notes of that chord, which physicists call quasinormal modes, depend only on the black hole’s mass and spin and on the law of gravity itself. Change the law, and the chord changes.
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Riverside County Sheriff Chad Bianco in February seized approximately 650,000 ballots from a November 2025 special election on statewide congressional redistricting
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During NASA’s SpaceX Crew-13 mission aboard the International Space Station, astronauts will support a series of biomedical and human performance investigations, including a new collaborative effort to study how spaceflight affects blood flow and clotting. NASA also is testing crew members’ manual piloting skills, evaluating methods to counter vision and brain changes, gathering essential health data to inform future missions, and measuring forces astronauts experience during their return to Earth to help refine re-entry hardware and procedures.
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Rocket launches are among the most violent ways humans have devised to travel. They generate millions of pounds of thrust and subject passengers to intense g-forces. Humans must undergo serious training to withstand those forces, while machines must be designed to survive them. If a delicate mirror or solder joint cracks before a multibillion-dollar satellite even begins its mission, the years of effort that went into its design and assembly could be lost. Now, researchers in Switzerland have come up with an ingenious way to make that less likely.
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Superconductors can carry electrical current without resistance, but only up to a maximum value known as the critical current. The critical current is a crucial figure of merit for applications, and materials science has long been focused on increasing this limit. Researchers at the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) have now shown that, in type-II superconductors, this conventional limit can be exceeded when the current is applied for only a few picoseconds.
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Quantum materials do things ordinary materials cannot. They carry current without any loss, or conduct only along their outer edge while the inside insulates. Future quantum computers and quantum sensors will run on materials like these. To improve them, researchers need to see exactly where currents and magnetic fields run at the nanoscale.
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Behind every secure online transaction or encrypted message lies a string of completely unpredictable numbers. A team of physicists has now proposed a theoretical way around a long-standing roadblock, opening the door to next-generation security chips that protect everyday data without slowing performance.
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Researchers at the Research Center for Materials Nanoarchitectonics (MANA), a center within Japan’s National Institute for Materials Science (NIMS), discovered that atomic-scale steps can guide superconducting vortices in an ultrathin superconductor.
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The cosmic microwave background (CMB) is the universe’s oldest light, leftover thermal radiation from about 380,000 years after the big bang. Maps of the CMB offer a picture of the “baby universe” as it was 13.8 billion years ago.
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Twistronics has become a new alchemy of materials. By choosing atomically thin layers, stacking them and changing their relative angle, researchers can create electronic behavior absent from the original ingredients. Twisted graphene and transition metal dichalcogenides have already yielded superconductivity and fractional Chern insulators, states with fractionally charged excitations. One of physics’ most active frontiers now has a moonshot ambition: to design entirely new forms of quantum matter.
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As a star nears the end of its life, it faces two very different fates: It can explode as a supernova, leaving behind a neutron star, or collapse and become a black hole. What determines the outcome remains one of astrophysics’ great unanswered questions.
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The armed man jumped from a vehicle and fled on foot, ignoring the officer’s commands to get on the ground during a foot pursuit, the Milwaukee Police Department stated
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Pinal County Sheriff Ross Teeple urged Congress to set clear limits on expanding AI capabilities while preserving plate-reading tools used to solve crimes and locate missing people
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In recent decades, astronomers have reconstructed a fairly complete scenario for planet formation, from minute dust motes clumping together to the emergence of rocky spheres thousands of kilometers across, like Earth, or larger gas giants like Jupiter.
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The woman had more than 20 warrants from seven jurisdictions when she pushed a Charles County Sheriff’s deputy aside, climbed into the driver’s seat of the stopped vehicle and fled
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