Read article 'Nearby supernova accounts for cosmic-ray ‘anomalies’'
The observed spectrum of cosmic rays has several puzzling features. For instance, the Alpha Magnetic Spectrometer (AMS) measured an excess of positrons and antiprotons at around 100 GeV. While it...
Read article 'CAST: enlightening the dark'
Our star has been the target of human investigation since the beginning of science. However, a plethora of observations are not yet understood. A good example is the unnaturally hot solar coron...
Read article 'ALICE looks to the skies (part II)'
The ALICE experiment, designed for the LHC heavy-ion programme, is particularly well-suited for the detection and study of very high-energy cosmic events. The apparatus is located in a cavern 52 m un...
Read article 'Eleven-year search misses gravitational waves'
A pair of supermassive black holes (SMBHs) in close orbit around each other are expected to produce gravitational waves. The background “rumble” of gravitational waves resulting from many ...
Read article 'A close look at the world’s largest astronomical project'
Résumé Pleins feux sur le plus grand projet astronomique du monde Huit ans après leur première visite sur le site d’ALMA, au Chili, Paola Catapano et Mike Struik, du CERN, re...
Read article 'CALET joins the International Space Station'
After a spectacular launch from the Tanegashima Space Center on 19 August on board the Japanese H2-B rocket operated by the Japan Aerospace Exploration Agency (JAXA), the CALorimetric Electron Te...
Read article 'Massive black-hole pair is on fast-merger track'
Earlier this year, astronomers discovered what appeared to be a pair of supermassive black holes (SMBHs) circling towards a collision, which would send out a burst of gravitational waves. A new study ...
Read article 'The universe is getting out of breath'
A new study of more than 200,000 galaxies, from the ultraviolet to the far infrared, has provided the most comprehensive assessment of the energy output of the nearby universe. It confirms that the ra...
Read article 'First light for the PAU camera'
PAUCam, the camera for the Physics of the Accelerating Universe (PAU) project, has been successfully installed and commissioned at the William Herschel Telescope (WHT) at the Roque de los Muchachos Ob...
Read article 'Do magnetars power hour-long gamma-ray bursts?'
Based on optical observations, a team of astronomers has, for the first time, demonstrated a link between a very long-lasting gamma-ray burst (GRB) and an unusually bright supernova explosion. The res...
