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Jurassic Space: Ancient Galaxies Come Together After Billions of Years

20 Feb 2010, 01:54 UTC
Jurassic Space: Ancient Galaxies Come Together After Billions of Years
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more cool HST galaxies gone wild pics.
As always, be sure to zoom in to the FULL frame (2758 X 2567)
6.8MB JPEG
http://imgsrc.hubblesite.org/hu/db/images/hs-2010-08-a-full_jpg.jpg
to see all the ‘tiny’ galaxies.
I like pair in the bottom left.
–Ben
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Jurassic Space: Ancient Galaxies Come Together After Billions of Years
February 18, 2010: Imagine finding a living dinosaur in your backyard. Astronomers have found the astronomical equivalent of prehistoric life in our intergalactic backyard: a group of small, ancient galaxies that has waited 10 billion years to come together. These “late bloomers” are on their way to building a large elliptical galaxy. Such encounters between dwarf galaxies are normally seen billions of light-years away and therefore occurred billions of years ago. But these galaxies, members of Hickson Compact Group 31, are relatively nearby, only 166 million light-years away. New images of these galaxies by NASA’s Hubble Space Telescope offer a window into what commonly happened in the universe’s formative years when large galaxies were created from smaller building blocks. The Hubble observations have added important clues to the story of this interacting foursome, allowing astronomers to determine when the encounter began and to predict a future merger. Astronomers know the system ...

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