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Crash Snapshots

The Antennae

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The Cartwheel Galaxy

The unusual shape of the Cartwheel Galaxy is likely due to a collision with one of the smaller galaxies on the lower left several hundred million years ago. More information

The Tadpole galaxy

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The Mice

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Arp 272

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NGC 3256

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Arp 87

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NGC 2207 and IC 2163

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NGC 520

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M 51

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Distant ultraluminous infrared galaxies

The Toomre sequence

In 1977 Alar Toomre selected 11 pairs of interacting galaxies to represent sequential stages of a galaxy merger. Optical images of these galaxies as obtained by the Hubble Space Telescope can be found here.

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