Peculiar galaxies showcase the beauty of cosmic violence
Throughout the visible Universe, trillions of galaxies abound. This deep-field view of the Universe showcases a portion of the COSMOS-Web field acquired with JWST. In this field are a wide variety of galaxies, where the largest, most massive ones are nearly all spirals or ellipticals, with some lenticular galaxies possessing properties common to both. However, about 5-10% of these galaxies, where their shapes can be resolved, are irregular, peculiar galaxies: evidence of galactic interactions and mergers. Credit: ESA/Webb, NASA & CSA, G. Gozaliasl, A. Koekemoer, M. Franco, and the COSMOS-Web team Most of the Universe’s stars, however, are contained in the largest, most massive galaxies. This image, acquired with the Hubble Space Telescope in 2018, shows the giant elliptical galaxy NGC 4860 alongside its passing neighbor, the rapidly-moving spiral NGC 4858. Both of these galaxies are located in the Coma Cluster, but NGC 4858 is special: it’s fast-moving, at 5600 km/s through the intracluster medium, and speeding through it in an edge-on fashion. The evidence for ram pressure stripping, including trails of newly formed stars …




