Spiral galaxies represent one of the most spectacular features in our universe. Among them, spiral galaxies in the distant universe contain significant information about their origin and evolution. However, we have had a limited understanding of these galaxies due to them being too distant t
Trieste [Italy], February 14 (ANI): There is a vast spherical region made up of dark matter particles, at the centre of spiral galaxies. This region has two defining characteristics: a density that is constantly out to a certain radius that amazingly expands over time, while the density decr