As the data from the Early Science Program of the James Webb Space Telescope continues to challenge our models of galaxy evolution, astronomers have made another puzzling discovery after analyzing the galaxies in the Fornax Dwarf Survey.
The mystery of dark matter is one of the most exciting unsolved problems in cosmology and astrophysics. Astronomers believe that almost one-fourth of the observable universe is composed of dark matter. Estimates also suggest that perhaps 85% of the matter present in galaxies is in the form of dark matter. According to our current models, dark matter halos are the basic units of cosmological structures. As a result, they play a crucial role in the formation and evolution of galaxies, protecting them from the gravitational influence of their neighbors. Without them, it is almost impossible for the galaxies to form in the first place.
But astronomers have noted something strange in the Fornax galaxy cluster 62 million light years away. The recent dark matter studies could pave the way for entirely new physics. So what's so special about the galaxies in this distant cluster? How do these galaxies challenge our current cosmological models? Finally, and most importantly, how can this discovery change the course of cosmology and astrophysics?
The 22nd episode of the Sunday Discovery Series answers these questions.