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Sig06-025
 

 

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Summary

Description
English: Astronomers have new evidence that the Andromeda spiral galaxy was involved in a violent head-on collision with the neighboring dwarf galaxy Messier 32 (M32) more than 200 million years ago. Infrared photographs taken with NASA's Spitzer Space Telescope revealed a never-before-seen dust ring deep within the Andromeda galaxy. When combined with a previously observed outer ring, the presence of both dust rings suggests that M32 plunged through the disk of Andromeda along Andromeda's polar axis approximately 210 million years ago. This image was obtained by the Infrared Array Camera (IRAC) at a wavelength of 8.0 microns.
Date 18 October 2006(2006-10-18)
Source https://www.spitzer.caltech.edu/images/2220-sig06-025-Forensic-Evidence-of-a-Galactic-Collision
Author NASA/JPL-Caltech/D. Block (Anglo American Cosmic Dust Lab, SA)

Image use policy: https://www.spitzer.caltech.edu/info/18-Image-Use-Policy

Licensing

Public domain This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)

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Warnings:
Photo's description:
Forensic Evidence of a Galactic Collision
Licensing:
Public Domain


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EXIF data:
File name sig06-025.jpg
Size, Mbytes 1.341921875
Mime type image/jpeg
Orientation of image 1
Image resolution in width direction 300
Image resolution in height direction 300
Unit of X and Y resolution 2
Color space information 65535
Exif image width 3000
Exif image length 2400
Software used Adobe Photoshop CS2 Macintosh




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