Ultra Deep Field galaxies. Hubble Space Telescope Ultra Deep Field, the deepest view ever taken of the universe in 2004. Each dot of light is a separate galaxy. Some of these are amongst the most distant objects ever seen, over 13 billion light years away, and thus over 13 billion years old. To detect these extremely faint galaxies, the HST focused its ACS and NICMOS cameras on an apparently empty patch of sky for one million seconds. The infrared NICMOS data shows galaxies at a redshift of up to 12, which were among the first objects to form in the universe after its birth 13.7 billion years ago.
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