Space-Time

Researchers have shown that multiple time crystals inside a semiconductor can synchronize their oscillations, much like pendulum clocks gradually falling into the same rhythm. The coupling is carried by spin-polarized electrons, allowing time crystals separated by up to 40 micrometers to lock to a common frequency. The discovery reveals surprisingly long-range connections between these exotic spin systems and could help researchers develop future spin-based devices.

Author(s): Ryan WilkinsonA proposed lab-based quantum sensor could precisely measure within seconds the warping of spacetime caused by Earth’s rotation. [Physics 19, s112] Published Thu Sep 17, 2026

A Stanford team has documented the first direct observation of quantum jumps of sound in a mechanical resonator, completing an arc of scientific exploration that started more than 100 years ago.

Nature is the foremost international weekly scientific journal in the world and is the flagship journal for Nature Portfolio. It publishes the finest peer-reviewed research in all fields of science and technology on the basis of its originality, importance, interdisciplinary interest, timeliness, accessibility, elegance and surprising conclusions. Nature publishes landmark papers, award winning news, leading comment and expert opinion on important, topical scientific news and events that enable readers to share the latest discoveries in science and evolve the discussion amongst the global scientific community.

Nature is the foremost international weekly scientific journal in the world and is the flagship journal for Nature Portfolio. It publishes the finest peer-reviewed research in all fields of science and technology on the basis of its originality, importance, interdisciplinary interest, timeliness, accessibility, elegance and surprising conclusions. Nature publishes landmark papers, award winning news, leading comment and expert opinion on important, topical scientific news and events that enable readers to share the latest discoveries in science and evolve the discussion amongst the global scientific community.

Welcome back to our series on Interstellar Travel, where we look at the many proposals made for sending missions to the stars since the dawn of the Space Age. In our first installment, we examined how Cold War-era developments in nuclear weapons and rockets paralleled advances in space exploration, resulting in proposals for nuclear rockets. We then examined how the creation of thermonuclear weapons led to applications in fusion propulsion.

Physicists have mathematically captured a bizarre “spacetime crystal” that can either dissolve or collapse into a microscopic black hole after only a tiny change in energy. Their breakthrough came from an unusual trick involving infinitely many dimensions, potentially giving researchers a new tool for studying primordial and microscopic black holes.

In our fifth installment, we explore the most exotic proposals for interstellar travel, including the Alcubierre Warp Metric, wormhole travel, the Halo Drive, and other truly advanced concepts.

Methane is a short-lived but powerful greenhouse gas; cutting methane emissions can slow near-term warming and improve air quality by reducing harmful ground-level ozone. As ruminants digest feed, they release methane—through burps. In fact, emissions from cattle are the largest source of human-caused methane emissions (roughly 25% of the total)—so reducing emissions from cattle is an important part of tackling climate change.

Roger Penrose found a way to extract energy from a spinning black hole without breaking any laws of physics. To understand it, we first have to level up our picture of spacetime, from Newton's empty stage to a swirling, draggable fabric.

In a new research report, scientists at Johns Hopkins Medicine say they have developed a technology that allows them to capture a 3D molecular "snapshot" of hundreds of hair follicles as they develop and then reconstruct the fourth dimension—time—to create a stop-motion animation of how this organ forms. The research was published in the journal Cell.

A team of Australian researchers has woven together modern science and Indigenous knowledge to reveal new insights into the evolution, history and future of the southern Great Barrier Reef. The 24-day voyage, led by The University of Queensland, returned to Brisbane today aboard research vessel (RV) Investigator, operated by CSIRO, Australia's national science agency.

In January 2024, physicists at TU Dortmund University demonstrated a continuous time crystal in a semiconductor whose oscillations remained stable for hours. In a new study published in Nature Communications, Professor Alex Greilich and his team show that many such time crystals can form in the same material and synchronize their electron-nuclear spin oscillations.

Wormholes are one way that physicists have imagined traveling into the past. But if something gets there, is it physically possible to change anything?

Photons traveling through a cloud of atoms can emerge so early that they appear to have spent a negative amount of time inside. Researchers tested whether this was merely a misleading feature of the light pulse by making extremely weak measurements of the atoms. Surprisingly, the atoms confirmed the same negative dwell time. The finding does not break standard physics, but it reveals that one of quantum mechanics’ strangest effects is physically measurable.

Scientists have built the first all-optical photonic time crystal, allowing them to reshape the behavior of terahertz light at extraordinary speeds. The breakthrough could open the door to ultrafast computing, smarter communication systems, advanced imaging, and a new generation of highly tunable lasers.

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An international team of researchers from École Polytechnique, Collège de France and Helmholtz-Zentrum Dresden-Rossendorf (HZDR) has achieved a world first: the experimental realization of an all-optical photonic time crystal (PTC), a material whose optical properties can be strongly and periodically modulated over ultrafast timescales.

Physicists, mathematicians and philosophers have been exploring the possibility of going forward to the future or back to the past

Conor McGregor reportedly bet $100,000 on Argentina after trusting a viral 'time traveller' prediction, but Spain's World Cup win cost him a potential $3.6 million payday.

A self-proclaimed time traveller claims aliens will make contact in 2028, sparking online debate. His assertions, made during a polygraph test, include future technological and societal changes.

NASA’s Transiting Exoplanet Survey Satellite (TESS) has captured evidence of a Jupiter-like world orbiting another star, using a trick straight out of Einstein’s relativity: gravitational microlensing. The technique marks a first for TESS, and opens up the possibility of a whole new category of planets the spacecraft might uncover.

Werner Heisenberg's famous uncertainty principle describes one of the most intriguing features of quantum physics: certain pairs of physical quantities describing a particle, such as position and momentum, cannot simultaneously be determined with arbitrary precision—not because of imprecise measuring instruments, but because nature forbids it. Between position and time, however, there is no Heisenberg uncertainty principle.

Everything around us, from atoms and molecules to planets and galaxies, is governed by two extraordinarily successful theories of physics: quantum mechanics and gravity. Quantum mechanics explains the behavior of the microscopic world, while Einstein's theory of gravity describes the motion of stars, black holes and the expansion of the universe. Yet despite their successes, physicists are still searching for a theory of "quantum gravity" that would unite them into a single description of nature.

Black holes are some of the most mysterious objects in the universe, but they aren't always silent. When two black holes are close enough to each other, they spiral toward one another, eventually crashing in an enormous explosion and forming a single, larger black hole.

New experimental evidence demonstrates that discrete space-time crystals can be realized in classical soft-matter systems, thereby moving beyond the traditional complexities of quantum mechanics.

A research team from Hiroshima University, the University of Colorado, and other collaborators have demonstrated that space-time crystals—exotic structures that, under external drive, loop endlessly through both space and time—can be created using everyday liquid-crystal materials.

What if our biggest idea about reality is built on a hidden misunderstanding? A new philosophical look at space-time challenges the popular view that the past, present, and future all exist together in a timeless "block universe." The argument suggests that physicists may be blurring the difference between things that exist and things that merely occur, creating deep confusion about what space-time actually is.

By taking general relativity into higher dimensions, a trio of physicists has proven that a mathematical pattern of ripples in space-time geometry could give rise to naked singularities and microscopic black holes.

In holographic theories, physicists may have traced the pliability of space-time to its quantum roots: a measure of quantumness known as “magic.” The post Entanglement Builds Space-Time. Now “Magic” Gives It Gravity. first appeared on Quanta Magazine

Physicists have thought for decades that microscopic black holes can theoretically emerge not from exploding stars but from delicate "critical states" in which space and time organise themselves into a crystal like structure. Now, for the first time, researchers from TU Wien and Goethe University Frankfurt have derived an exact mathematical formula describing this bizarre phenomenon using a surprising trick involving infinitely many dimensions!

A new Physical Review Letters study places constraints on the ER = EPR conjecture, showing that under the authors' assumptions, the conjecture would imply possible alterations to the hyperfine structure and effective charge of the hydrogen atom—effects that have never been observed.

What if wormholes were never cosmic tunnels at all? New research suggests Einstein and Rosen’s famous “bridge” may actually reveal something even stranger: time itself could flow in two directions at once. Instead of connecting distant places in space, these bridges may connect mirror versions of time deep inside quantum physics, potentially solving the long-standing black hole information paradox and hinting that our universe existed before the Big Bang.

Black holes crashing together may be revealing clues about dark matter hidden across the universe. Physicists created a new model predicting how dark matter could subtly distort gravitational waves produced during black hole mergers. When they tested the method on real LIGO data, one signal stood out as potentially carrying a dark matter imprint.

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The most massive black holes in the universe detected by the ripples they make in spacetime were not born directly from collapsing stars, according to a new study. These cosmic giants instead build up through a series of repeated and extremely violent collision events in very densely populated star clusters, an international team of researchers argue.

Lara Trump rejects an online theory about Barron on her podcast, but her blunt denial triggers a rush of jokes and fresh speculation across social media.

A strange kind of matter that “ticks” forever without energy input has just taken a major leap toward real-world use. Known as a time crystal, this quantum system repeats its motion endlessly—like a clock that never winds down—and scientists have now managed to connect it to an external device for the first time. By linking the time crystal to a tiny mechanical oscillator, researchers showed they can actually control its behavior, opening the door to powerful new technologies.

Dr. Michael P. Masters suggests UFOs are time-traveling humans from the future, monitoring their ancestors amid potential environmental crises. His theory aligns with evolutionary trends and recent UAP interest

The concept of spacetime, first described in Einstein's theory of general relativity, has since been widely studied by many physicists worldwide. Spacetime is described mathematically as a four-dimensional (4D) continuum in which physical events occur, which merges three-dimensional (3D) space, with one-dimensional (1D) time.

Author(s): Calvin M. Hooper, Ian R. Hooper, and Simon A. R. HorsleyThe authors introduce a Floquet quasinormal mode formalism for describing the transient response of time crystals. They analyze the emergence of exceptional points and non-perturbative phenomena relevant to recent experiments. [Phys. Rev. A 113, 043526] Published Wed Apr 29, 2026

A seaside town is devastated when a small fishing boat, the Rose of Nevada, disappears at sea. Thirty years later, the boat reappears in the harbour and sets off a moving story, says Bethan Ackerley

DHS budget documents reveal ICE Glasses smart eyewear project with real-time biometric watchlist access for federal agents in the field.

Scientists have taken a major step toward probing one of physics’ biggest mysteries—how gravity and quantum mechanics fit together—by creating the first unified way to detect tiny “ripples” in spacetime itself. These subtle fluctuations, long predicted but poorly defined, are now organized into clear categories with specific signals that real-world instruments can search for. The breakthrough means powerful tools like LIGO and even small tabletop experiments could start testing competing theories of quantum gravity much sooner than expected.

Douglas Adams told us the answer to life, the universe and everything is 42. If only cosmology were so straightforward. Astronomers have been arguing for years about a number every bit as fundamental, and they still can't agree on it.

A mysterious video allegedly shows a trespasser at Area 51 claiming to have found a 'time dilation facility,' sparking online frenzy.

Douglas Adams famously told us the answer to life, the universe and everything is 42. Astronomers have been wrestling with their own version of that answer for years, except their number is the Hubble constant, a measure of how fast the universe is expanding, and nobody can agree what it is. Now a new study using ripples in spacetime as a measuring tools has produced a fresh value that might just help resolve one of the biggest arguments in modern cosmology.

Scientists have created a new kind of time crystal using sound waves to levitate tiny beads in mid-air. These particles interact in a one-sided, unbalanced way, breaking the usual rules of motion and creating a steady, repeating rhythm. The system is surprisingly simple yet reveals complex physics with big implications. It could help advance quantum computing and deepen our understanding of biological timing systems.

Speculation that Barron Trump is a time traveller has reached fever pitch following the discovery of 19th-century drawings by Charles Dellschau. Theorists claim the sketches and Ingersoll Lockwood's novels predicted the Trump presidency with 'impossible' accuracy.

Author(s): Sophia ChenNew theoretical work shows how an unusual state of matter that oscillates between spin states could be used in timekeeping. [Physics 19, s39] Published Wed Mar 18, 2026

Author(s): Ludmila Viotti, Marcus Huber, Rosario Fazio, and Gonzalo ManzanoNew theoretical work shows how an unusual state of matter that oscillates between spin states could be used in timekeeping. [Phys. Rev. Lett. 136, 110401] Published Wed Mar 18, 2026

The bizarre properties of discrete time crystals could be harnessed to detect extremely subtle oscillations of magnetic fields, physicists in the US and Germany have revealed. Publishing their results in Nature Physics, a team led by Ashok Ajoy at the University of California, Berkeley, show for the first time that these exotic materials could have practical uses far beyond their current status as an impractical curiosity.

From Nikola Tesla's groundbreaking experiments to John G. Trump's review of secret papers, and the eerie 19th-century Baron Trump novels, explore why some believe Donald Trump might be a time traveler.

An international team from China and Italy has reported a possible cosmic encore to the landmark 2017 multi-messenger discovery. In November 2024, the LIGO-Virgo-KAGRA observatories detected gravitational waves from a binary black hole merger, designated S241125n. Remarkably, just seconds later, satellites recorded a short gamma-ray burst (GRB) from the same region of the sky.

Pushed down to a certain scale, the laws of physics seem to fall apart. Astrid Eichhorn, a leader in an area of study called asymptotic safety, thinks we just need to push a little further. The post Where Some See Strings, She Sees a Space-Time Made of Fractals first appeared on Quanta Magazine

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A new catalog of gravitational waves more than doubles the known number of these spacetime ripples

The tiny bots follow patterns of light and "artificial space-time," navigating like craft following the curved space around a black hole.

A prototype artificial intelligence-powered camera incorporated into an intelligent road sign has successfully detected and recorded a koala crossing a road in real time on the Redlands Coast, marking the first time this technology has been proven in the field.

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The latest news and headlines from Yahoo! News. Get breaking news stories and in-depth coverage with videos and photos.

A team of researchers led by the University of Warwick has developed the first unified framework for detecting

Orbiting 250 miles above Earth, the views from the International Space Station (ISS) are second to none, and always make a huge impact on astronauts lucky enough to stay there. NASA’s Zena Cardman, who returned form the ISS in January after a visit lasting just over five months, this week shared a gorgeous time lapse […] The post This stunning space time lapse ‘shows a little of everything’ appeared first on Digital Trends.

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Time crystals could one day provide a reliable foundation for ultra-precise quantum clocks, new mathematical analysis has revealed. Published in Physical Review Letters, the research was led by Ludmila Viotti at the Abdus Salam International Center for Theoretical Physics in Italy. The team shows that these exotic systems could, in principle, offer higher timekeeping precision than more conventional designs, which rely on external excitations to generate reliably repeating oscillations.

Once considered an oddity of quantum physics, time crystals could be a good building block for accurate clocks and sensors, according to new calculations

Author(s): Mia C. Morrell, Leela Elliott, and David G. GrierA pair of acoustically levitated beads powered by nonreciprocal interactions can spontaneously organize into a continuous time crystal, a state of matter that sustains steady-state oscillations without periodic driving. [Phys. Rev. Lett. 136, 057201] Published Fri Feb 06, 2026

Time crystals, a collection of particles that "tick"—or move back and forth in repeating cycles—were first theorized and then discovered about a decade ago. While scientists have yet to create commercial or industrial applications for this intriguing form of matter, these crystals hold great promise for advancing quantum computing and data storage, among other uses.

Earth's magnetic field is generated by the churn of its liquid nickel-iron outer core, but it is not a constant feature. Every so often, the magnetic north and south poles swap places in what are called geomagnetic reversals, and the record of these flips is preserved in rocks and sediments, including those from the ocean floor. These reversals don't happen suddenly, but over several thousand years, where the magnetic field fades and wobbles while the two poles wander and finally settle in the opposite positions of the globe.

Physical systems become inherently more complicated and difficult to produce in a lab as the number of dimensions they exist in increases—even more so in quantum systems. While discrete time crystals (DTCs) had been previously demonstrated in one dimension, two-dimensional DTCs were known to exist only theoretically. But now, a new study, published in Nature Communications, has demonstrated the existence of a DTC in a two-dimensional system using a 144-qubit quantum processor.

Using a superconducting quantum computer, physicists created a large and complex version of an odd quantum material that has a repeating structure in time

A viral TikTok video features a man claiming to have time travelled to the mythical country of Torenza, describing utopian scenes. It sparked debates on parallel dimensions and time travel, but fact-checks link it to an urban legend

A TikTok creator claims to show New York City in 1956, baffling viewers online.

A team of researchers led by the University of Warwick has developed the first unified framework for detecting "spacetime fluctuations"—tiny, random distortions in the fabric of spacetime that appear in many attempts to unite quantum physics and gravity.

Quantum mechanics is rich with paradoxes and contradictions. It describes a microscopic world in which particles exist in a superposition of states—being in multiple places and configurations all at once, defined mathematically by what physicists call a "wavefunction." But this runs counter to our everyday experience of objects that are either here or there, never both at the same time.

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a misunderstanding of work by physicists Albert Einstein and Nathan Rosen.

Controversial broadcaster alleges extraordinary conspiracy tied to late Turning Point USA founder's private messages and unexplained surveillance theories.

Candace Owens claims Charlie Kirk was a 'time traveller' monitored by secret agents, immediately losing public trust she gained over conspiracy theories behind his death.

Candace Owens alleges on her podcast that Charlie Kirk was a secret time traveller monitored by shadowy 'Matrix agents', revealing a web of conspiracy.

Multiple TikTok accounts claiming to be time travellers are going viral for eerie videos of empty cities and dark future predictions.

Viral TikTok videos claim to show Earth in 2055 with empty cities and mass disappearance, but experts say the clips are staged fiction with no evidence online.

The CHIEF1900 is currently the world's most powerful centrifuge that was commissioned by China in December 2025.

Viral TikToker claiming to be trapped in 2055 divides the internet with empty Paris footage and PlayStation 7, sparking fierce debate over AI-generated videos versus elaborate hoax.

Astronomers have directly observed a spinning black hole twisting spacetime, confirming a century-old prediction of Einstein's theory of relativity.

Author(s): Kun Zhou, Jian-Wen Xu, Qi-Ping Su, Yu Zhang, Xiang-Min Yu, Zhuang Ma, Han-Yu Zhang, Hong-Yi Shi, Wen Zheng, Shuyi Pan, Yihao Kang, Zhiguo Huang, Chui-Ping Yang, Shao-Xiong Li, and Yang YuA qutrit-based realization of a discrete-time quantum walk overcomes the scalability challenge and demonstrates the generation of topological edge states. [Phys. Rev. Lett. 135, 250601] Published Fri Dec 19, 2025

Astronomers have detected spacetime itself being dragged and twisted by a spinning black hole for the first time. The discovery, seen during a star’s violent destruction, confirms a prediction made over 100 years ago and reveals new clues about how black holes spin and launch jets.

Physicists used liquid crystals to build a near-perpetual clock-like system, demonstrating a 'time crystal' phase where components move continuously without external power.

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Andrej Karpathy received early access to Google’s newest AI model on November 17, one day before its public

The nature of time has plagued thinkers for as long as we've tried to understand the world we live in. Intuitively, we know what time is, but try to explain it, and we end up tying our minds in knots.

Experiments show that a time crystal based on magnons can interact with mechanical waves without being destroyed.

For obvious reasons, we do not know what the inside of a black hole looks like. But thanks to theoretical physics, we can ask what the inside should look like if Einstein's theory of gravity and the rules of quantum mechanics are both true. A new study published in the journal Physical Review Letters has done exactly this by concentrating on two black holes that are deeply entangled (linked together by quantum rules).