Physicists Just Reached a New Speed Limit For Moving Quantum Information

Scientific progress towards a quantum computing future has so far involved lots of different breakthroughs in lots of different (but related) fields, and there's now a new one to report: the discovery of a crucial quantum speed limit. This latest research answers a fundamental question – how fast can a quantum process be? It's a useful piece of information to know if you want to build a quant

Stonehenge Likely Built With Stones And a Design Taken From an Ancient Welsh Monument

Remains of an ancient monument in west Wales indicate stones that stood at the site may have been dismantled and used to build the Neolithic standing circle Stonehenge, a new study suggested Friday. Researchers believe some stones used at Stonehenge, near Salisbury in southwest England, were used in an earlier monument 175 miles (280 kilometres) away in southwest Wales. The team behind the d

A Physicist Has Worked Out The Math That Makes ‘Paradox-Free’ Time Travel Plausible

No one has yet managed to travel through time – at least to our knowledge – but the question of whether or not such a feat would be theoretically possible continues to fascinate scientists. As movies such as The Terminator, Donnie Darko, Back to the Future and many others show, moving around in time creates a lot of problems for the fundamental rules of the Universe: if you go back in time

Birds Use an Invisible ‘Map’ to Find Their Way in Faraway Places They’ve Never Seen

Every year, billions of songbirds migrate thousands of miles between Europe and Africa – and then repeat that same journey again, year after year, to nest in exactly the same place that they chose on their first great journey. The remarkable navigational precision displayed by these tiny birds – as they travel alone over stormy seas, across vast deserts, and through extremes in weather and

A Distant Galaxy Is Flaring With Strange Regularity, And Scientists Have Figured Out Why

Roughly every 114 days, almost like clockwork, a galaxy 570 million light-years away lights up like a firework. Since at least 2014, our observatories have recorded this strange behaviour; now, astronomers have put the pieces together to figure out why. In the centre of the spiral galaxy, named ESO 253-G003, a supermassive black hole is being orbited by a star that, every 114 days, swings close

Earliest Animal Cave Art on Record Has Been Found in Indonesia, And It’s Adorable

The oldest-known animal drawing in the world is a 45,500-year-old depiction of a hairy, warty pig on a cave wall in Indonesia, a new study finds. The mulberry colored painting, drawn with the red mineral ochre, shows the profile of what is likely a Sulawesi warty pig (Sus celebensis), a wild stubby-legged beast with facial warts that can weigh up to nearly 190 pounds (85 kilograms). These pi

Scientists Just Discovered 3 New Kinds of Carnivorous Sponge in The Deep Ocean

Even though we know the deep sea is weird, 'carnivorous sea sponges' still sound like something from a sci-fi movie. And yet, researchers just announced the discovery of three new such species off the coast of Australia. Go a few hundred metres deep into the ocean, and it starts to look like you're in a whole new world: From a creature that looks like a sea star crossed with an octopus, to shar

Traces of a Mysterious Particle Predicted Decades Ago May Have Been Detected

Evidence of a long-sought hypothetical particle could have been hiding in plain (X-ray) sight all this time. The X-ray emission coming off a collection of neutron stars known as the Magnificent Seven is so excessive that it could be coming from axions, a long-predicted kind of particle, forged in the dense cores of these dead objects, scientists have demonstrated. If their findings are confi

In 1110, The Moon Vanished From The Sky. We May Finally Know Why

Almost a millennium ago, a major upheaval occurred in Earth's atmosphere: a giant cloud of sulphur-rich particles flowed throughout the stratosphere, turning skies dark for months or even years, before ultimately falling down to Earth. We know this event happened because researchers have drilled and analysed ice cores - samples taken from deep within ice sheets or glaciers, which have trapped s

Physicists Observe Fleeting ‘Polaron’ Quasiparticles For The First Time

Polarons are important nanoscale phenomena: a transient configuration between electrons and atoms (known as quasiparticles) that exist for only trillionths of a second. These configurations have unique characteristics that can help us understand some of the mysterious behaviours of the materials they form within – and scientists have just observed them for the first time. Polarons were mea