File:When galaxies collide (32080586632).jpg

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DescriptionWhen galaxies collide (32080586632).jpg	This delicate smudge in deep space is far more turbulent than it first appears. Known as IRAS 14348-1447 — a name derived in part from that of its discoverer, the Infrared Astronomical Satellite (IRAS for short) — this celestial object is actually a combination of two gas-rich spiral galaxies. This doomed duo approached one another too closely in the past, gravity causing them to affect and tug at each other and slowly, destructively, merge into one. The image was taken by Hubble’s Advanced Camera for Surveys (ACS). IRAS 14348-1447 is located over a billion light-years away from us. It is one of the most gas-rich examples known of an ultraluminous infrared galaxy, a class of cosmic objects that shine characteristically — and incredibly — brightly in the infrared part of the spectrum. Almost 95% of the energy emitted by IRAS 14348-1447 is in the far-infrared! The huge amount of molecular gas within IRAS 14348-1447 fuels its emission, and undergoes a number of dynamical processes as it interacts and moves around; these very same mechanisms are responsible for IRAS 14348-1447’s own whirling and ethereal appearance, creating prominent tails and wisps extending away from the main body of the galaxy.
Date	8 July 2016, 14:44
Source	When galaxies collide
Author	NASA Hubble Space Telescope

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This image was originally posted to Flickr by NASA Hubble at https://flickr.com/photos/144614754@N02/32080586632 (archive). It was reviewed on 13 July 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

13 July 2018

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Credit/Provider	ESA/Hubble & NASA
Source	ESA/Hubble
Short title	When galaxies collide
Image title	This delicate smudge in deep space is far more turbulent than it first appears. Known as IRAS 14348-1447 — a name derived in part from that of its discoverer, the Infrared Astronomical Satellite (IRAS for short) — this celestial object is actually a combination of two gas-rich spiral galaxies. This doomed duo approached one another too closely in the past, gravity causing them to affect and tug at each other and slowly, destructively, merge into one. The image was taken by Hubble’s Advanced Camera for Surveys (ACS). IRAS 14348-1447 is located over a billion light-years away from us. It is one of the most gas-rich examples known of an ultraluminous infrared galaxy, a class of cosmic objects that shine characteristically — and incredibly — brightly in the infrared part of the spectrum. Almost 95% of the energy emitted by IRAS 14348-1447 is in the far-infrared! The huge amount of molecular gas within IRAS 14348-1447 fuels its emission, and undergoes a number of dynamical processes as it interacts and moves around; these very same mechanisms are responsible for IRAS 14348-1447’s own whirling and ethereal appearance, creating prominent tails and wisps extending away from the main body of the galaxy.
Usage terms	Creative Commons Attribution 4.0 International License
Date and time of data generation	06:00, 2 January 2017
Software used	Adobe Photoshop CC 2015 (Windows)
File change date and time	14:44, 8 July 2016
Date and time of digitizing	19:45, 8 April 2016
Date metadata was last modified	16:44, 8 July 2016
Unique ID of original document	xmp.did:143ae86c-c5fc-be47-ba69-f10c0d4e9588
Keywords	IRAS 14348-1447
Contact information	http://www.spacetelescope.org Karl-Schwarzschild-Strasse 2 Garching bei M√ºnchen, , D-85748 Germany
IIM version	4

File:When galaxies collide (32080586632).jpg

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