Dark Matter-Based Cosmology Model Defied by Ordered Dwarf Galaxies
Deepening the mystery around the dark matter, new research has found that the small satellite dwarf galaxies orbiting around the much larger galaxy Centaurus A are rotating in synchrony around their host. Because our own Milky Way and the neighbouring Andromeda Galaxy also have similar arrangements of coherently orbiting satellite galaxies, new findings suggest that standard cosmological simulations may be wrong. Current theories of galaxy formation, based on standard cosmological ingredients such as dark matter, predict that small dwarf satellite galaxies should orbit in random positions and directions around their closest large galaxy. For the study, researchers led by Oliver Muller from the University of Basel in Switzerland analysed the movement of satellite dwarf galaxies around Centaurus A, a galaxy around 13 million light-years away.
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