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dark matter

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Can dark matter interact with itself?

The nature of dark matter, the invisible matter that holds galaxies together, still evades scientists almost a century after first inferring its existence. Since we cannot observe dark matter directly, like we can detect a star through the light it emits, astrophysicists study how its... click to read more

Views 2044
Reading time 3 min
published on May 10, 2023
Can we read the universe’s book of secrets?

Illustration realized in the framework of a collaboration between the Image/Recit option of the HEAD (Haute École d'Art et de Design) - Genève and the Faculty of Sciences of the University of Geneva. The standard model of particle physics is one of the most successful... click to read more

  • Noshin Tarannum | PhD student at Section of Physics, Faculty of science, University of Geneva, Geneva, Switzerland
  • Anna Sfyrla | Professor at Section of Physics, Faculty of science, University of Geneva, Geneva, Switzerland
Views 2137
Reading time 4 min
published on Jul 29, 2022
A missing ingredient in dark matter theories?

In 1933, Fritz Zwicky, observing the Coma galaxy cluster, noted that single galaxies were moving too fast for the cluster to remain bound, according to the measure of visible mass. Only a far more significant amount of invisible matter could explain the strong gravitational force... click to read more

  • Massimo Meneghetti | Researcher at Osservatorio di Astrofisica e Scienza dello Spazio, Istituto Nazionale di Astrofisica (INAF), Bologna, Italy
Views 3017
Reading time 3.5 min
published on Mar 31, 2021
Is dark matter lighting up the sky with X-rays?

Eighty-five percent of the mass in our Universe is the mysterious substance named dark matter. Besides giving it a name, however, we know little else about it. How can we claim we know dark matter exists if we can't even see it? Through gravity. Just... click to read more

  • Nick Rodd | Miller Fellow at University of California, Berkeley, USA
Views 3056
Reading time 4 min
published on Mar 2, 2021