Deep Imaging Survey - ELAIS S1
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Deep Imaging Survey - ELAIS S1

April 19, 2005
This image is part of the Deep Imaging Survey in the direction of the European Large Area Infrared Survey (ELAIS). It is a combination of more then 20 images taken during September 2003 added together for a total exposure time of 12,200 seconds (about 4 hours).

Tens of thousands of objects can be identified in this picture. Many of the faint blue objects are distant galaxies that astronomers will use to study the star formation history of the Universe. The bright red objects are foreground stars in our Milky Way galaxy.

This image highlights the ability of GALEX to survey large volumes of the Universe in a single gulp. The ELAIS S1 field spans an enormous cosmic volume of about 100 Million cubic light-years. GALEX plans to observe about 100 fields in its Deep Imaging Survey, bringing the GALEX cosmic survey to about 10 Billion cubic light-years, or about 0.1% of the volume of entire Universe!

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