360° LHC Following a longer than usual technical stop, which began in December last year to allow for the replacement of the CMS inner tracker, all eight sectors of the Large Hadron Collider (LHC) have been cooled […]

SN 1987A Thirty years ago, a massive stellar explosion sent shock waves not only through space but also through the astronomical community. Detected on 23 February 1987 in the Large Magellanic Cloud – a satellite galaxy of […]

After 13 years as the Courier’s Astrowatch contributor, astronomer Marc Türler is moving to pastures new. We thank him for his numerous lively columns keeping readers up to date with the latest astro results.

Over time, an increasing number of particle physicists became interested in the problem of dark matter, partly driven by new scientific results but also by sociological changes.

A 100 km-circumference collider would address many of the outstanding questions in modern particle physics.

An interview with Erik Verlinde, who argues that dark matter is an illusion caused by an incomplete understanding of gravity.

• André Lagarrigue Prize 2016 • CERN communications make the grade • Hidden Figures premiered • A wealth of new results at Moriond • Madagascar event marks 15 years • Celebrating 90 years of quantum mechanics • Physics at the intensity frontier • CLIC looks to the future • RuPAC16 demonstrates international outlook • Visits

• Ludwig Faddeev 1934–2017 • Victor Kryshkin 1939–2017 • Heinrich Leutz 1928–2017

• Challenges and Goals for Accelerators in the XXI Century • Big Data: Storage, Sharing, and Security • Books received

Tool use was originally thought to be uniquely human, although it has since been reported in primates, marine mammals and birds. Now, Olli Loukola and colleagues of Queen Mary University in London have found that […]

Fluorescent frogs Fluorescence is rare in land animals, being largely limited to parrots and marine turtles. Now, for the first time, it has been found in a frog. Carlos Taboada of CONICET in Buenos Aires and colleagues […]

Exclusion curves An experiment in Korea designed to search for light sterile neutrinos has published its first results, further constraining the possible properties of such a particle. Even though the number of light neutrinos cannot exceed three, […]

GBAR linac installation On 1 March, the first component of a new CERN experiment called GBAR (Gravitational Behaviour of Antihydrogen at Rest) was installed: a 1.2 m-long linear accelerator that will be used to generate positrons. Located in the […]

Exclusion limits The ATLAS experiment has released several new results in its search for supersymmetry (SUSY) using the full 13 TeV LHC data set from 2015 and 2016, obtaining sensitivity for certain new particles with masses exceeding 2 TeV. […]

A supersolid is a bizarre quantum state that is rigid like a solid, yet can flow like a zero-viscosity liquid (a superfluid). After many years of theoretical arguments as to whether this sort of material […]

Long thought to be chemically inert, helium has now been coaxed into forming a stable compound. Artem Oganov and colleagues of Stony Brook University in New York put thin pieces of sodium together with helium […]

Bubble-chamber picture Our changing view of the nature of matter 1954–1974 The electromagnetic force In quantum electrodynamics (QED) intermediary photons removed the enigma of “action at a distance” between charged particles. However, when trying to calculate physical […]