Galaxies
type: Concept
narrower: Interacting galaxies

Galaxy collisions
type: Concept
broader: Interacting galaxies

Galaxy mergers
type: Concept
broader: Interacting galaxies

Galaxy pairs
type: Concept
broader: Interacting galaxies

Galaxy tides
type: Concept
broader: Interacting galaxies

Galaxy triplets
type: Concept
broader: Interacting galaxies

Interacting galaxies
type: Concept
contributor: AAS Frey.Katie
modified: 2020-11-10T17:38:35.631Z
modified: 2020-11-10T17:38:23.253Z
alternative label: Colliding galaxies
broader: Galaxies
definition: Galaxies that are close enough for their mutual gravitational attraction to produce perturbed shapes or extruded filaments of stellar material, called tidal tails. Most galaxies are in clusters, and gravitational interactions between them are common.
narrower: Galaxy triplets
narrower: Galaxy pairs
narrower: Galaxy collisions
narrower: Galaxy mergers
narrower: Galaxy tides