Galactic hydrogen filaments represent one of the fundamental components of cosmic structure, drawing a complex network that shapes the visible universe. These gigantic chains of baryonic matter, primarily composed of neutral hydrogen clouds, play a crucial role in the intergalactic medium by orchestrating galaxy formation and the evolution of galaxy clusters. Thanks to recent advances … Read more
IN BRIEF Superclusters of galaxies: vast groupings of galaxies. Laniakea: a supercluster that extends over nearly 500 million light-years. More than 100,000 galaxies in our supercluster, identified through extensive studies. Superclusters are subdivided into groups of clusters known as galaxy clouds. Cosmic flows: movements of galaxies influenced by gravity. Hyperion: a supercluster of young galaxies, … Read more
IN BRIEF Origin of galaxies: results from small fluctuations in density in the primitive universe. Formation: process by merging dwarf galaxies and gravitational collapse. Types of galaxies: include spiral galaxies, with a disk of gas, dust, and stars. Evolution: linked to each galaxy’s ability to create stars. Environment: evolution depends on local physical and chemical … Read more