Science ❯ Astronomy ❯ Galaxies
Gas Dynamics NGC 4532 / DDO 137 Gravitational Lensing Arp 107 IC 2163 and NGC 2207 NGC 2207 and IC 2163 Stephan's Quintet Interacting Galaxies Galaxy Mergers Large Magellanic Cloud Milky Way and Andromeda Collision Quasars NGC 4532 and DDO 137 Cosmic Joust
Modeling points to tidal forces with Virgo Cluster ram pressure as the sculpting mechanism over roughly a billion years.