The Andromeda–Milky Way collision is a galactic collision that may occur in about 4.5 billion years between the two largest galaxies in the Local Group—the Milky Way and the Andromeda Galaxy.
This series of photo illustrations shows a possible predicted merger between the Milky Way Galaxy and the neighboring Andromeda Galaxy.
The Milky Way Galaxy
Interacting galaxy
Videos
Interacting galaxies, also known as colliding galaxies, are two or more galaxies whose gravitational fields result in a disturbance of one another. There are several types of galactic interactions, in
NGC 3169 (left) and NGC 3166 (right), located in the constellation Sextans display some curious features, showing that both galaxies are close enough to feel the distorting gravitational influence of the other. Image from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at the La Silla Observatory.
Gravitationally lensed galactic merger H-ATLAS J142935.3-002836.
This image, captured by the NASA/ESA Hubble Space Telescope, shows two interacting galaxies, NGC 169 (bottom) and IC 1559 (top).
Montage of some well known interacting galaxies