Free Republic

In five years, we’ll all likely be chuckling and shaking our heads over AI. Because today, the tech feels free and limitless, doesn’t it?People are generating endless content: images, videos, memes, code snippets, social posts. Companies are bolting AI onto products by default, the way every Fortune 500 company suddenly discovered they were “sustainable” five years ago.There’s much deliberation on AI right now, and it splits into two main camps of thesis:The majority — those who will die on its hill of promise, convinced we’re months away from effective altruism, UBI, and sentient toasters.And the minority — usually older, more...

The Sun runs on an 11-year cycle of rising and falling activity, tracked mainly by counting sunspots – the dark patches scattered across its surface. Solar Cycle 25, the current cycle, was forecast as mild, and the sunspot count agreed. But those counts read only the surface. A global network of six telescopes has listened to the Sun’s interior for nearly 40 years, and what it is now telling researchers is not what the surface suggested at all. Listening inside the Sun Scientists have a name for eavesdropping on those sound waves: helioseismology. The waves are trapped inside the Sun,...

The concept of the Einstein-Rosen bridge is often understood as a cosmic shortcut, akin to a tunnel that links distant points in spacetime. While that image makes for compelling science fiction, a new study shows that it does not match the actual physics behind this concept. Recent research suggests that the original bridge theory was not a wormhole but a mathematical feature of how time is structured. This new realization could help solve a persistent problem in physics. The study, led by Professor Enrique Gaztañaga from the University of Portsmouth, along with K. Sravan Kumar and João Marto, was published...

Credit: CTIO/NOIRLab/DOE/NSF/AURA/J. Pollard Image Processing: D. de Martin & M. Zamani (NSF NOIRLab) =============================================================================== In A Nutshell A 37-member international team produced the most precise direct measurement of the Hubble constant ever recorded, with just 1.1 percent uncertainty. By linking a dozen different cosmic distance measurement methods into a single “Distance Network,” they confirmed the universe is currently expanding at about 73.5 kilometers per second per 3.26 million light-years. That rate conflicts with what the Big Bang’s ancient afterglow predicts by more than seven times the margin of error, a gap that makes a simple measurement mistake increasingly implausible. Resolving...

A team from Vienna and Frankfurt has found a formula describing a strange phenomenon: space and time can form a kind of “crystal” that may turn into a black hole.Alongside the famous gigantic black holes, physics also allows for microscopic versions. They emerge from so-called critical states, when spacetime organizes itself into a regular, crystal-like structure during a process known as critical collapse. A team from Goethe University Frankfurt and TU Wien has now succeeded, for the first time, in describing this phenomenon with an exact mathematical formula using an unusual mathematical trick. Black holes usually form in spectacular events,...

For more than two centuries, scientists have tried to determine one of the most important numbers in physics: the universal gravitational constant, known as "big G." It defines the strength of gravity throughout the universe, influencing everything from falling objects on Earth to the motion of galaxies. Yet despite its importance, researchers still cannot agree on its exact value. That uncertainty weighed heavily on Stephan Schlamminger, a physicist at the National Institute of Standards and Technology (NIST), as he prepared to open a sealed envelope containing a crucial secret number. For nearly 10 years, Schlamminger had devoted much of his...

In a new physics milestone, scientists report that a time crystal and an external system have been successfully linked for the first time. The achievement, made by researchers at Aalto University’s Department of Applied Physics, marks the first demonstration of converting a time crystal—an unusual quantum system in which particles are in constant, repetitive motion in its ground state—into an optomechanical system. A range of potential technological applications, including new high-precision sensors, quantum storage systems, and other innovative capabilities, could result from the research, led by Jere Mäkinen and detailed in a new paper appearing in Nature Communications. A New...

The beams are an in-kind contribution from CERN. Matthew Kapust / SURF The US has begun lowering 10 million pounds of steel nearly a mile underground to build the Deep Underground Neutrino Experiment (DUNE), widely regarded as one of the world’s most ambitious particle physics experiments. The Fermi National Accelerator Laboratory (Fermilab), the premier US national lab for high-energy particle physics announced the start of the underground detector assembly for the massive neutrino project in South Dakota on May 7. It is carried out along with the Sanford Underground Research Facility and CERN. Transported deep underground, the steel beams will...

How time travel could work: Scientists have uncovered a way to send messages into the past Time machines may seem better suited to science fiction than the physics lab, but experts say this futuristic technology could become a reality. Researchers have revealed how time travel could really work by using the laws of quantum physics. While their method won't let you hop back to the time of the dinosaurs, scientists say it could be possible to send messages into the past. The researchers even say this mind–bending technique would work just like in Christopher Nolan's sci–fi epic, Interstellar. In the...

“There is a silence in the night sky that has bothered me for as long as I can remember.” That line, attributed to Richard Feynman, lands because it gets at a simple, stubborn feeling. The sky looks full. Stars crowd the darkness. It seems reasonable to think someone else should be out there, and close enough to find. Yet the deeper physicists look into the laws that govern the universe, the more that silence starts to seem less like a cosmic riddle and more like a built-in feature of reality. Human intuition is not much help. It developed for ordinary...

It’s the end of the world as we know it — a lot sooner than we think. A team of researchers have drastically scaled back the going estimate of how long it will be until the universe ceases to exist. Previously, scientists believed it would be 10¹¹⁰⁰ years until the very last objects in the cosmos would disappear forever — that’s a 1 followed by 1,100 zeroes, in layman’s terms. But a new study published in the Journal of Cosmology and Astroparticle Physics by a trio of researchers at Radboud University in the Netherlands posits the real figure as closer...

A simple experiment in a child’s swimming pool allows you to visualize the angular momentum of rotating waves. Beautifully done.

Scientists have recently discovered the underlying hidden magnetic order in the pseudogap phase of a quantum material. The peculiar phase exists immediately above the superconducting transition. The research team employed an ultracold-atom simulator. They were able to detect a hidden antiferromagnetic order even when the material lacked electrons. This is referred to as doping. This is a crucial phase in designing a novel superconductor at a higher temperature. The findings offer fresh insights into a long-standing problem related to superconductivity.Ultracold atoms reveal hidden magnetismAccording to the reports, to explore the nature of the pseudogap, the researchers employed a cold-atom simulator...

The traditional understanding is that the center of our galaxy is dominated by a supermassive black hole...Instead of a black hole, there could be...a colossal clump of dark matter, the substance thought to account for 85 percent of all mass in the cosmos.

OpenAI's GPT-5.2 has derived a new formula for gluon interactions, overturning assumptions of zero amplitude and advancing theoretical physics. For a long, long time physicists treated this interaction as a cosmic impossibility — a mathematical dead end so absolute it was taught almost with the certainty of Newton's laws and the elegance of Einstein's equations. Zero, in quantum physics, isn't a shrug; it's a verdict. And this particular verdict had stood unchallenged for decades. But every so often, science gets a jolt — a falling apple, a bending beam of starlight… or, in 2026, an AI model that refuses to...

In a remarkable twist that bridges ancient ambition with cutting-edge science, physicists working at the Large Hadron Collider have achieved what medieval alchemists only dreamed of: turning lead into gold. While attempting to recreate conditions moments after the Big Bang, researchers on the ALICE experiment in Switzerland inadvertently produced minuscule quantities of the precious metal, marking an unexpected breakthrough in particle physics. The Accidental Discovery The extraordinary transformation occurred during experiments where beams of lead nuclei were fired at each other at velocities approaching the speed of light. While the primary goal was to study the primordial state of the...

She is a star of American science. A Stanford chair. A NASA collaborator. A role model for a generation of young researchers. But a chilling congressional investigation has found that celebrated geologist Wendy Mao quietly helped advance China's nuclear and hypersonic weapons programs – while working inside the heart of America's taxpayer funded research system. Mao, 49, is one of the most influential figures in materials science. She serves as Chair of the Department of Earth and Planetary Sciences at Stanford University, one of the most prestigious science posts in the country. Her pioneering work on how diamonds behave under...

Claudio Neves Valente, the suspect in the Brown and MIT shootings, had flashes of temper; former classmates describe him as confrontational and socially awkward Twenty-five years ago, two promising physicists graduated from a prestigious science university in Lisbon. On Monday, one gunned the other down at his home outside Boston after firing on a classroom of Brown University undergrads, authorities say. Claudio Neves Valente, the suspected shooter, once had a bright future. He graduated at the top of his college class, ahead of classmate Nuno Loureiro. But by the time Neves Valente confronted Loureiro at his Brookline, Mass., apartment building...

Authorities say the same suspect was responsible for Saturday’s mass shooting at Brown University and the Monday night murder of an MIT professor in Brookline, Mass. At a news conference Thursday night in Providence, that city’s police chief Col. Oscar Perez identified the Brown suspect as 48-year-old Claudio Manuel Neves Valente.At a separate news conference in Boston, U.S. Attorney for Massachusetts Leah Foley said Valente, a Portuguese national, is also believed to be the gunman who killed MIT physicist Nuno F.G. Loureiro.Ted Docks, the Special Agent in Charge of Boston’s FBI field office, told the press a search warrant was...

Physicists have known since 1911 that electricity can flow without resistance in materials called superconductors. And in 1957, they figured out why: Under specific conditions, including typically very cold temperatures, electrons join together in pairs—something that's normally forbidden due to their mutual repulsion—and as pairs, they can flow freely. Electron pairs are named for Leon Cooper, the physicist who first described them. In addition to explaining classical superconductivity, physicists believe Cooper pairs bring about high-temperature superconductivity, an unconventional variant discovered in the 1980s. It was dubbed "high-temperature" because it occurs at temperatures that, although still very cold, are considerably higher...