Correcting optical aberration Spherical lenses suffer from optical aberration, which prevents all rays from being focused to a single point. As long ago as 1854, James Clerk Maxwell proposed a mathematical solution to this problem by making the […]

Final touches Synchro-cyclotron has protons again On 1 October the refurbished CERN synchro-cyclotron (now known as SC2) accelerated protons to the full energy of 600 MeV in a very successful start to its recommissioning. The SC was the […]

• Bjørn Jacobsen 1961–2017 • Guido Petrucci 1926–2017 • Peter Sonderegger 1935–2017

• New spokesperson for GERDA • Brookhaven light source passes two years of user operations • Physics at the festival frontier • Eclipse captures world’s attention • Accelerating science in Turkey • Strangeness in quark matter • Rethinking dark matter in Vietnam • Swiss and Austrian physical societies meet at CERN • Updates from the Higgs sector • HASCO school reports from Göttingen • Visits

Extracting neutrino properties from long-baseline neutrino experiments relies on modelling neutrino-nucleus interactions.

Carina Nebula This image from the Chandra X-Ray Observatory shows the Carina Nebula in X-rays (low-energy shown in red and the highest energy X-rays in blue). The nebula lies at an estimated distance of 6500–10,000 light years, […]

In a conventional lithium-ion battery, ions moving inside the medium power electrons through an external circuit. In an ingenious reversal of this idea, an “electron battery” sees electrons moving internally while ions are pushed through […]

Menthol is a ubiquitous cooling agent used in a wide variety of products. But it turns out that nutmeg packs a punch 30 times stronger, making it the most powerful natural cooling agent known. Tomohiro […]

Oscillations of solar neutrinos could provide valuable information on the internal structure of the Earth, according to a new study. Ara Ioannisian of the Yerevan Physics Institute in Armenia and colleagues argue that the relative […]

Creating a waveguide Biological media are not usually thought capable of guiding light because they do not exhibit large nonlinear optical responses, but a new study by Zhigang Chen of San Francisco State University and colleagues changes this […]

WZ data Beyond the Standard Model of particle physics (SM), crucial open questions remain such as the nature of dark matter, the overabundance of matter compared to antimatter in the universe, and also the mass scale of […]

Measured values In addition to the direct production of new particles in high-energy collisions, evidence for new physics beyond the Standard Model (SM) could arise through precision measurements. Two particularly important parameters in this regard are the […]