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Forming the present-day spiral galaxies
 

 

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Description
English: 04-Feb-2010: Using data from the NASA/ESA Hubble Space Telescope, astronomers have, for the first time, created a demographic census of galaxy types and shapes from a time before the Earth and the Sun existed, to the present day. The results show that, contrary to contemporary thought, more than half of the present-day spiral galaxies had so-called peculiar shapes only 6 billion years ago, which, if confirmed, highlights the importance of collisions and mergers in the recent past of many galaxies. It also provides clues for the unique status of our own galaxy, the Milky Way.
Date 4 February 2010(2010-02-04)
Source News Release - heic1002: Forming the present-day spiral galaxies
Author NASA, ESA, Sloan Digital Sky Survey, R. Delgado-Serrano and F. Hammer (Observatoire de Paris)
Permission
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w:en:Creative Commons
attribution		 This file is licensed under the Creative Commons Attribution 3.0 Unported license.
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Attribution: ESA/Hubble
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Photo's description:
04-Feb-2010: Using data from the NASA/ESA Hubble Space Telescope, astronomers have, for the first time, created a demographic census of galaxy types and shapes from a time before the Earth and the Sun existed, to the present day. The results show that, contrary to contemporary thought, more than half of the present-day spiral galaxies had so-called peculiar shapes only 6 billion years ago, which, if confirmed, highlights the importance of collisions and mergers in the recent past of many galaxies. It also provides clues for the unique status of our own galaxy, the Milky Way.
Licensing:
Creative Commons Attribution 3.0 Unported


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EXIF data:
File name forming_the_present-day_spiral_galaxies.jpg
Size, Mbytes 2.7149521484375
Mime type image/jpeg
Color space information 65535
Exif image width 2481
Exif image length 3508
Software used Adobe Photoshop CS4 Macintosh




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