Read article 'HAWC clarifies cosmic positron excess'
Since 2008, astronomers have been puzzled by a mysterious feature in the cosmic-ray energy spectrum. Data from the PAMELA satellite showed a significant increase in the ratio of positrons to electrons...
Read article 'First cosmic-ray results from CALET on the ISS'
The CALorimetric Electron Telescope (CALET), a space mission led by the Japan Aerospace Exploration Agency with participation from the Italian Space Agency (ASI) and NASA, has released its first resul...
Read article 'Extreme cosmic rays reveal clues to origin'
The energy spectrum of cosmic rays continuously bombarding the Earth spans many orders of magnitude, with the highest energy events topping 108 TeV. Where these extreme particles come from, however,...
Read article 'Gravitational waves and the birth of a new science'
On 14 September 2015, the world changed for those of us who had spent years preparing for the day when we would detect gravitational waves. Our overarching goal was to directly detect gravitational ra...
Read article 'First intermediate black-hole candidate'
ago, numerous black-hole candidates have been found. These consist of both low-mass black holes, which have several times the mass of the Sun, and supermassive black holes (SMBHs), which are billions ...
Read article 'Strangeness in quark matter'
17th edition of the International Conference on Strangeness in Quark Matter (SQM 2017) held at Utrecht University in the Netherlands
Read article 'Study links solar activity to exotic dark matter'
The temporal distribution of solar flares is correlated with the positions of the Earth, Mercury and Venus.
Read article 'Machine learning improves cosmic citizen science'
Launched in 2014, the Distributed Electronic Cosmic-ray Observatory (DECO) enables Android smartphone cameras to detect cosmic rays. In response to the increasing number of events being recorded, howe...
Read article 'Optical survey pinpoints dark-matter structure'
During the last two decades the WMAP and Planck satellites have produced detailed maps of the density distribution of the universe when it was only 380,000 years old – the moment electrons and proto...
Read article 'Evidence suggests all stars born in pairs'
The reason why some stars are born in pairs while others are born singly has long puzzled astronomers. But a new study suggests that no special conditions are required: all stars start their lives as ...
