The ALPHA collaboration has made seminal measurements of antihydrogen’s spectral structure in a bid to test nature’s fundamental symmetries.

• John D’Auria 1939–2017 •  Raoul Gatto 1930–2017 •  Ernst Heer 1928–2017 •  Frank Paige 1944–2017

Relativity Matters: From Einstein’s EMC2 to Laser Particle Acceleration and Quark-Gluon Plasma By Johann Rafelski Springer Also available at the CERN bookshop This monograph on special relativity (SR) is presented in a form accessible to […]

New director for Los Alamos •  DPG elects next president •  Change of spokespersons at Pierre Auger •  Mark Thomson set to head up UK research council •  Sackler Prize for work on quantum field theory •  Emmy Noether distinction •  Event breathes new life into CERN history •  Winners of Buchalter Prize announced •  Creating a shared future in a fractured world •  Human interactions leave indelible tracks at CERN •  Physics fest for a future circular collider •  Project to assess impact of research infrastructures  • CLIC workshop focuses on strategy  • Rutherford Appleton Laboratory turns 60 • Visits

This small planetary nebula, NGC 7027, was first spotted in 1878, only 450 years after the nebula first started expanding. The name “planetary nebula” is a misnomer, however. It dates back to William Herschel, who classified […]

Water’s complicated phase diagram may need to be updated. Kyung Hwan Kim of Stockholm University and colleagues used femtosecond X-ray laser pulses to probe micrometre-sized water droplets supercooled in a vacuum. Measuring the diameter of […]

Normally, it’s all but impossible to hear underwater sounds from above the water surface due to reflection at the interface. By placing a novel metamaterial in contact with the surface, however, Sam Lee of Yonsei […]

Making waves Mysteriously, ocean and atmospheric waves near the equator all share the property that they travel eastwards. Now, Pierre Delplace of the University of Lyon and colleagues have suggested a topological origin to this effect, with […]

The weak equivalence principle, a cornerstone of general relativity, says that all bodies should fall at the same rate. Recent results from the MICROSCOPE satellite, launched in April 2016 and operated by the French space […]

DNA can be designed to assemble into specific shapes, but the range of possibilities has been limited – until now. A clutch of papers published in the same issue of Nature describe several approaches to […]

The APPEC report Multi-messenger astronomy, neutrino physics and dark matter are among several topics in astroparticle physics set to take priority in Europe in the coming years, according to a report by the Astroparticle Physics European Consortium (APPEC). […]

Figure Many questions remain about what happened in the first billion years of the universe. At around 100 million years old, the universe was a dark place consisting of mostly neutral hydrogen without many objects emitting detectable […]

Figure In two publications submitted to the Journal of High Energy Physics and Physics Letters B in December, the ALICE collaboration reports new production cross-section measurements of the charmed baryons Λ+c and Ξ0c in proton–proton collisions […]

Figure The quest to search for new physics inspires searches in CMS for very rare processes, which, if discovered, could open the door to a new understanding of particle physics. One such process is the production […]

Figure Measuring the production of the top quark with vector bosons can provide fresh insight into the Standard Model (SM), in particular by testing the top quark and heavy vector boson vertices, which may be modified […]

The new ExTrA facility A new national facility at La Silla Observatory in Chile, operated by the European Southern Observatory (ESO), made its first observations at the beginning of the year. ExTrA (Exoplanets in Transits and their Atmospheres) will […]

A proton beamline at TRIUMF Researchers at TRIUMF in Canada have reported the first production of ultracold neutrons (UCN), marking an important step towards a future neutron electric dipole moment (nEDM) experiment at the Vancouver laboratory. Precision measurements of the […]