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Measuring the mass of W bosons took 10 years – and the result was not what physicists expected. PM Images/Digital Vision via Getty Images

A decade of science and trillions of collisions show the W boson is more massive than expected – a physicist on the team explains what it means for the Standard Model

A decadelong experiment produced the most accurate measurement yet of the mass of W bosons. These particles are responsible for the weak force, and the result is more evidence for undiscovered physics.
Magnetic fusion reactors contain super hot plasma in a donut-shaped container called a tokamak. dani3315/iStock via Getty Images

Nuclear fusion hit a milestone thanks to better reactor walls – this engineering advance is building toward reactors of the future

In January 2022, the JET fusion experiment produced more power over a longer period of time than any past attempt. Two physicists explain the engineering advancements that made the result possible.
According to researcher Marc-Antoine Fardin, under the right circumstances, cats’ bodies can behave like liquids. Nevena Uzurov/Moment via Getty Images

Physics and psychology of cats – an (improbable) conversation

Have you wondered why cats are so nimble and seem to fit perfectly in cups, boxes, and other small places? Or how cats communicate with humans? A physicist and a psychologist explain.
Ski jumpers use aerodynamics and physics to overcome gravity – at least for a while. AP Photo/Matthias Schrader

Ski jump: Flying or falling with style?

Ski jumpers do everything they can to counteract the effects of gravity and fly as far as they can down hills.
Experiments at the Large Hadron Collider in Europe, like the ATLAS calorimeter seen here, are providing more accurate measurements of fundamental particles. Maximilien Brice

2021: a year physicists asked, ‘What lies beyond the Standard Model?’

Physicists know a lot about the most fundamental properties of the universe, but they certainly don’t know everything. 2021 was a big year for physics – what was learned and what’s coming next?
Headphone designers have to balance scientific limitations with human preferences. Vladimir Godnik via Getty Images

Great headphones blend physics, anatomy and psychology – but what you like to listen to is also important for choosing the right pair

There is a lot to consider when buying a new pair of headphones. A professional musician and acoustics researcher explains how the science of sound and quirks of human hearing make for a great listening experience.
It only takes light about eight minutes to go from the Sun to Earth. loops7/E+ via Getty Images

Have we made an object that could travel 1% the speed of light?

The fastest things ever made by humans are spacecraft, and the fastest spacecraft reached 330,000 mph – only 0.05% the speed of light. But there are ways to go faster.

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