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US National Science Foundation clamps down on misconduct

Agency will now require every grantee organization to report cases of sexual harassment

Simulations reveal how sharp boundaries endure in soft tissue

Research could help explain how cells organize into complex living systems

TRAPPIST-1 exoplanets could harbour significant amounts of water

All seven worlds circling a red dwarf could be habitable, say astronomers

Heaviest element could have fascinating atomic and nuclear spectra

Simulations suggest oganesson has extremely smooth electron and nucleon distributions

Topological light makes a quantum connection

Research could lead to more robust quantum-information systems

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White papers

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Single molecule spectroscopy using tunable lasers

Research from the Max Planck Institute for the Science of Light in Erlangen, Germany. A white paper from HÜBNER Photonics 

Tunable lasers at work with trapped ions

Research from the AMO research group at the University of Freiburg, Germany. A white paper from HÜBNER Photonics 

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Developing the world's first full-body PET scanner

Video Simon Cherry explains why the EXPLORER project will revolutionize medical imaging


Tracking proton therapy with acoustic waves

Video Katia Parodi describes an innovative technique for improving ion-beam therapy



Looking – into the future

With age comes failing eyesight, but Helen Gleeson hopes her team's research into liquid-crystal contact lenses that can switch focus may provide a solution


Building a firm foundation in vacuum technology

Sponsored article: One company's evolution from a small component manufacturer to a major supplier of precision vacuum equipment highlights the importance of expert knowledge for winning customer trust



The dark side

Can you use databases to study the history of physics? Robert P Crease finds out



Let's start at the very beginning

Origins is an illuminating account of the science behind the creation of the universe, and much more, writes Sabine Hossenfelder


The man behind the machine

The Turing Guide comprehensively covers the work and life of Alan Turing, and is a testament to his lasting legacy, says Google’s vice-president Vint Cerf

Innovation & industry

Focus issue

Physics World Focus on Neutron Science

Free to read Understanding lightning strikes, how industry exploits neutrons, balancing security and accessibility

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