A practical superconductor would transform the efficiency of electronics. After decades of hunting, several key breakthroughs are inching us very close to this coveted prize

A contentious meeting of physicists highlighted concerns, failures and possible fixes for a crisis in condensed matter physics

The Linac Coherent Light Source in California fired an X-ray pulse that lasted only a few hundred billionths of a billionth of a second but carried nearly a terawatt of power

Subatomic particles can appear to instantly influence one another, no matter how far apart they are. These days, that isn't a source of mystery – it's a fact of the universe and a resource for new technologies

Experiments show that effect doesn’t always follow cause in the weird world of subatomic particles, offering fresh clues about the quantum origins of space-time

Fractals are common in nature because of the surprisingly simple way they are made. Mathematically, they also help us make sense of complexity and chaos – and maybe even quantum weirdness

From the vastness of the universe to the infinitesimal particles that comprise it, extremes of scale defy comprehension – and present a problem for physicists seeking a unified theory of everything

One way to explain why time only moves forward is the quantum arrow of time, and it has major implications for both the universe's early period and its eventual demise

When I heard Stephen Hawking extol the mysteries of black holes, I knew theoretical physics was what I wanted to do. There is still so much to learn about these strange regions, says Chanda Prescod-Weinstein

The true nature of time has eluded physicists for centuries, but a new theoretical model suggests it may only exist due to entanglement between quantum objects

Physicists have coaxed a cloud of atoms into having a temperature beyond absolute zero and placed them in a geometric structure that could produce an unknown form of matter

Fictional portrayals of parallel universes are fun to explore, but the scientific view of the multiverse looks very different

Strange solids called temporal metamaterials finally make it possible to investigate the controversial idea of quantum friction – and push special relativity to its limits

Quantum light is key to futuristic quantum technologies, but researchers have been creating it in the same way for 60 years – now liquid crystals offer an easier way to produce it

Two types of fusion reactor called tokamaks and stellarators both have drawbacks – but a new design combining parts from both could offer the best of both worlds

It should be possible to combine several quantum states, each with almost no energy, to create a single quantum state containing unexpectedly energy-rich regions

While time is relative, it still flows in one direction for every observer. We don’t yet understand why, but some physicists are looking for answers that invoke the evolution of entropy, says Chanda Prescod-Weinstein

ITER, a €20 billion nuclear fusion reactor under construction in France, will now not switch on until 2035 - a delay of 10 years. With smaller commercial fusion efforts on the rise, is it worth continuing with this gargantuan project?

An experiment with a robot and gelatine determined that 65-micrometre-thick paper is the most prone to slicing our skin – but it can also make for a handy recyclable knife

Through science, we are striving for objective knowledge about the universe around us. But physicists increasingly believe achieving this will never be possible

Almost all the stars that will ever exist have already been born, and they have been around long enough for life to evolve on planets that orbit them

One hundred years ago, we discovered there were other galaxies beyond our own. Now, we might be on the verge of another discovery: that there are other universes

The atoms within quasicrystals are arranged in repeating forms, but unlike ordinary crystals they have more complex symmetry. It turns out this makes them perfect for producing mazes

A set of mathematical equations can help turn apparently random observations into a clock – and then measure its accuracy

Working with a tiny cantilever, physicists managed to violate the second law of thermodynamics, using less energy than expected to change the cantilever’s motion

A jiggling robot has revealed the ideal vibrating speed to free jumbled fibres

The gamma ray burst known as GRB221009A is the biggest explosion astronomers have ever glimpsed and we might finally know what caused the blast

A subatomic particle called the muon caused waves when its experimental behaviour didn't align with a prediction based on the standard model. A new calculation might resolve the discrepancy – but some particle physicists are sceptical

An ordinary-looking valley has a secret – each of its neighbours is 20 years removed in time. Scott Alexander Howard's debut is heartfelt and deeply enjoyable, says Emily H. Wilson

Experiments in a wind tunnel have revealed why the sling action bowling technique made famous by Sri Lankan cricketer Lasith Malinga is so effective at hoodwinking whoever is batting

In the quantum realm, a particle’s properties can be separate from the particle itself, including its angular momentum – which could require a rethinking of fundamental laws

A weird quantum phenomenon called delocalisation has been measured for a 100-nanometre glass bead, helping reveal where the boundary lies between quantum and classical physics

Smashing gold nuclei together at high speeds billions of times has resulted in 16 particles of antihyperhydrogen-4, a very exotic and heavy form of antimatter

Physicists have demonstrated a bizarre cooling effect by setting up a detector to record the absence of photons in a laser experiment

To determine an object’s quantum properties, you may only need to measure how it exchanges heat with its environment, without touching the object itself

In an experiment simulating what happens deep in the interiors of planets, scientists have found that liquid can be compressed into ice crystals – even at extremely high temperatures

The hunt for particles of dark matter has been stymied once again, with physicists placing constraints on this mysterious substance that are 5 times tighter than the previous best

Atoms tunnelling through a quantum battery could charge it and also keep it from losing energy, which could give an advantage over conventional batteries

With its particles in two places at once, quantum theory strains our common sense notions of how the universe should work. But one group of physicists says we can get reality back if we just redefine its foundations

The direction of cause and effect was brought into question for quantum objects more than a decade ago, but new calculations may offer a way to restore it

In 2022, physicists were excited by hints that something was wrong with our understanding of the universe - but new results have put that in doubt

Even though the strange behaviour we observe in the quantum realm isn’t part of our daily lives, simulations suggest it is likely our reality could be one of the many worlds in a quantum multiverse

Experiments in a state-of-the-art wave tank suggest we have underestimated the potential size and power of rogue waves and the risk they pose to offshore infrastructure

A recent atomic physics workshop was outside my dark matter comfort zone, but learning about science beyond my usual boundaries was invigorating, says Chanda Prescod-Weinstein

Simple words like "force" and "particle" can mislead us as to what reality is actually like. Physicist Matt Strassler unpacks how to see things more clearly

Daniele Oriti’s pursuit of a theory of quantum gravity has led him to the startling conclusion that the laws of nature don’t exist independently of us – a perspective shift that could yield fresh breakthroughs

If gravity is a truly quantum entity, something as simple as measuring the strength of an object’s gravitational field should change its quantum state

A mathematical proof shows that some quantum states can resist nature’s tendency to disorder – but only under very specific conditions

A mathematical study finds that three definitions of what it means for entropy to increase, which have previously been considered equivalent, can produce different results in the quantum realm

Could the universe's missing matter be hiding in a "dark" extra dimension? We now have simple ways to test this outlandish idea - and the existence of extra dimensions more generally