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

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

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

Commercially available quantum technology could let stock traders coordinate decisions to buy or sell nearly instantaneously using a technique called “quantum telepathy”

A century ago, Albert Einstein suggested that the universe might contain ripples in space-time, known as gravitational waves – but then he changed his mind

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

Forget atomic clocks. Nuclear clocks, which only drop a second every 300 billion years, can test whether nature's fundamental constants are constant after all

Particles of light can spend "negative time" passing through a cloud of extremely cold atoms – without breaking the laws of physics

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

Physicists finally know whether black holes destroy the information contained in infalling matter. The problem is that the answer hasn’t lit the way to a new understanding of space-time

A typically fragile quantum superposition has been made to last exceptionally long, and could eventually be used as a probe for discovering new physics

Inside a hunk of a material called a semimetal, scientists have uncovered signatures of bizarre particles that sometimes move like they have no mass, but at other times move just like a very massive particle

Tiny pieces of stone found in a rock formation in Western Australia may be the oldest evidence of a meteorite impact on Earth, dating back nearly 3.5 billion years

The eruption of the Shiveluch volcano on the Kamchatka Peninsula in Russia on 11 April sent plumes of volcanic ash many kilometres into the air and could affect flights

The second series of this show about Earth 66 million years ago is a joy to watch - but it inspires more than it informs. A little more science would have been nice

Earth appears to have less mass beneath a certain part of the Indian Ocean compared with the rest of the planet. Plumes of magma at the location could explain why

This photo of Tungurahua, a volcano exploding in the Ecuadorian night, comes from an illustrated book to accompany a TV series about Earth’s deep history

Photographer Matjaz Krivic has been charting the effects of lithium mining on locals in the world's largest salt flat in Bolivia since 2016

Computer simulations of how influenza A moves through human mucus found it is ideally configured to slide through the sticky stuff on its way to infecting cells

A typically fragile quantum superposition has been made to last exceptionally long, and could eventually be used as a probe for discovering new physics

Our metabolism's response to food is highly idiosyncratic and there are hints that tailoring our diet to these personal differences can deliver health benefits

An off-the-shelf millimetre wave sensor can pick out the tiny vibrations made by a smartphone's speaker, enabling an AI model to transcribe the conversation, even at a distance in a noisy room

Soil is full of an uncountable number of viruses, and scientists are only beginning to understand just how substantial their role in the carbon cycle may be

Inside a hunk of a material called a semimetal, scientists have uncovered signatures of bizarre particles that sometimes move like they have no mass, but at other times move just like a very massive particle

Running, swimming, HIIT or walking – what is the best way to work out? The answer is complicated, and depends on the person, finds Grace Wade

DNA analysis suggests Pando, a quaking aspen in Utah with thousands of stems connected by their roots, is between 16,000 and 81,000 years old

Chronic pain has increased among adults in the US since 2019, which could be due to a rise in sedentary lifestyles or reduced access to healthcare amid covid-19 restrictions

Data collected by the Zhurong rover and orbiting satellites suggests the existence of an ancient shoreline in the Utopia Planitia region of Mars

Four-legged robot dogs learned to perform new tricks by practising in a virtual platform that mimics real-world obstacles – a possible shortcut for training robots faster and more accurately

Voyager 2 flew by Uranus in 1986, giving us our only up-close look at the planet – but unusual space weather just before the craft arrived has given us a misleading idea about the planet’s magnetic field

You might have heard about plans to establish a self‑sustaining city on Mars. Here’s what life would really be like on the Red Planet

AI and Google Street View have created 'digital twins' of living trees in North American cities – part of a huge simulation that could help make urban tree planting and trimming decisions

New archaeological evidence shows that ancient humans ate each other surprisingly often - sometimes for compassionate reasons. The finds give us an opportunity to reassess our views on the practice

A settlement in the east of England burned down in a fire 3000 years ago, falling into a muddy waterway that preserved everything inside the houses including tools, fabric, cooking pots and more

Evidence from an archaeological site in Ethiopia suggests ancient humans adapted their diet during a dry spell after the Toba volcano eruption 74,000 years ago

Can cultivating positive behaviours and tweaking our lifestyles lead to healthier, happier lives – even longer lives? Discover the daily choices that may make the difference in a fascinating new book

Genetic analysis of 50,000-year-old Neanderthal skeletons has uncovered the remnants of three viruses related to modern human pathogens, and the researchers think they could be recreated

Babies cannot tell us what they are experiencing, so it is hard to know what they are conscious of. But new research suggesting they perceive the world consciously could change how we care for them, says Claudia Passos-Ferreira

Remote sensing, including lidar, reveals that the Amazon was once home to millions of people. The emerging picture of how they lived challenges ideas of human cultural evolution

Highland and lowland populations in Papua New Guinea have different gene variants derived from Denisovan archaic humans, indicating possible adaptations for lower oxygen levels and higher malaria risk

Archaeologists have used AI to discover hundreds of large-scale drawings depicting figures like llamas, decapitated human heads and killer whales armed with knives

Spear-throwing tools called atlatls allow humans to launch projectiles over great distances, but Neanderthals apparently never used them – and an experiment involving a 9-metre-tall platform may explain why

Netflix’s Ancient Apocalypse peddles the idea that we have overlooked an extraordinary ancient civilisation. Flint Dibble explains why that is wrong, and why real archaeology is more exciting

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