Milky Way and Andromeda encounters

This selection of images of external galaxies illustrates three encounter scenarios between our Milky Way and the neighboring Andromeda galaxy. In the top left panel, a wide-field DSS image showing galaxies M81 and M82 serves as an example of the Milky Way and Andromeda passing each other at large distances. The top right panel shows NGC 6786, a pair of interacting galaxies displaying the telltale signs of tidal disturbances after a close encounter. The bottom panel shows NGC 520, a cosmic train wreck as two galaxies are actively merging together.

[Image description: A three-panel image, two at the top and one stretched across the bottom. At top left, two spiral galaxies are widely separated against the black background of space. At top right, two face-on spiral galaxies are close together. Their spiral arms appear stretched toward each other. At bottom, two spiral galaxies have collided, resulting in a broad X-shaped patch of milky white. Mottled clouds of dark brown dust are superimposed.]

Credit:

NASA, ESA, STScI, Till Sawala (University of Helsinki), DSS, J. DePasquale (STScI)

About the Image

Id:heic2508a
Type:Collage
Release date:2 June 2025, 17:00
Related releases:heic2508
Size:3663 x 4184 px

About the Object

Category:Galaxies

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