The antimatter enigma: What is it and why didn’t it destroy the universe?

It sounds like sci-fi: normal matter has an “evil twin” that annihilates as soon as the two come into contact. But this antimatter is very real, and despite decades of study it remains very mysterious. So what actually is antimatter? Where is it? Why i… Continue reading The antimatter enigma: What is it and why didn’t it destroy the universe?

How a really cold bath can help unravel the mysteries of the cosmos

A new “bathtub” experiment has allowed physicists to measure the lifetime of a free neutron far more precisely than ever before. The breakthrough could help probe the fringes of the Standard Model of particle physics, as well as mysteries like dark mat… Continue reading How a really cold bath can help unravel the mysteries of the cosmos

2021 Nobel Prize in Physics awarded to scientists bringing order to chaos

The 2021 Nobel Prize in Physics has been awarded to three scientists for “groundbreaking contributions to our understanding of complex physical systems.” One half went jointly to Syukuro Manabe and Klaus Hasselmann for models that eventually predicted … Continue reading 2021 Nobel Prize in Physics awarded to scientists bringing order to chaos

Dark matter detector may have accidentally detected dark energy instead

Last year, physicists reported that an experimental dark matter detector picked up a strange signal that could hint at new physics, with several suspects highlighted. Now, Cambridge scientists have proposed an answer that wasn’t considered at the time … Continue reading Dark matter detector may have accidentally detected dark energy instead

Quantum gas free fall experiment creates coldest temperature ever recorded

Physicists in Germany have produced the coldest temperature ever recorded – a chilly 38 trillionths of a degree above absolute zero. The strange experiment involved dropping a quantum gas, and switching a magnetic field on and off to bring its atoms to… Continue reading Quantum gas free fall experiment creates coldest temperature ever recorded

New antimatter trap could help explain why cosmos didn’t self-destruct

Antimatter is a tricky substance to study, not least because it will annihilate any container you try to put it in. But now, physicists at CERN have developed a new antimatter trap that can cool down samples in seconds, rather than hours. This advance … Continue reading New antimatter trap could help explain why cosmos didn’t self-destruct

First observations of a “quantum tug” help unravel the weirdness of water

It makes up more than half of the human body and covers around 70 percent of the Earth’s surface, but there is still a lot we don’t understand about water. By using cutting-edge tools to study microscopic jets of the liquid, scientists have spotted wat… Continue reading First observations of a “quantum tug” help unravel the weirdness of water

Never-before-detected gravitational waves hint at dark matter

A new type of gravitational wave detector running in Western Australia has recorded two rare events that might be signals of dark matter or primordial black holes. These high-frequency gravitational waves are beyond the range of most detectors and have… Continue reading Never-before-detected gravitational waves hint at dark matter