Hubble eXtreme Deep Field (XDF): looking back at 13.2 Billion Years in time!
The XDF contains about 5,500 galaxies even within its smaller field of
view!. (Each dot is one!) The universe is 13.7 billion years old (after
the Big bang), and the XDF reveals galaxies that span back 13.2 billion
years in time when the universe was only 450 million years old!.
Most of the galaxies in the XDF are seen when they were young, small,
and growing, often violently as they collided and merged together. XDF
is a "time tunnel into the distant past.
XDF was assembled by combining 10 years of NASA Hubble Space Telescope
photographs taken of a patch of sky at the center of the original Hubble
Ultra Deep Field. The XDF is a small fraction of the angular diameter
of the full Moon.
Released 26 September 2012
see :http://hubblesite.org/
XDF was assembled by combining 10 years of NASA Hubble Space Telescope photographs taken of a patch of sky at the center of the original Hubble Ultra Deep Field. The XDF is a small fraction of the angular diameter of the full Moon.
Released 26 September 2012
see :http://hubblesite.org/
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