An optical image of the Sculptor dwarf spheroidal galaxy (left) alongside an illustration of the gamma-ray signal that might arise from dark matter annihilating within the galaxy (right). Image left: Giuseppe Donatiello. Image right (background): NASA/DOE/Fermi LAT Collaboration.
An optical image of the Sculptor dwarf spheroidal galaxy ( left ) alongside an illustration of the gamma-ray signal that might arise from dark matter annihilating within the galaxy ( right ). Image left: Giuseppe Donatiello. Image right (background): NASA/DOE/Fermi LAT Collaboration. Dark matter might be disappearing and sending its signal - but not very fast - in dwarf satellite galaxies Dark matter is even more elusive than thought before. This is the main message of a new study by a group of scientists that includes Shin'ichiro Ando of the Institute of Physics at the University of Amsterdam. The results of the new study were published in Physical Review D Rapid Communications this week. The nature of dark matter remains one of the greatest mysteries in physics.
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