This is awesome. This is a zoomable image of the deepest field image yet taken by the Hubble Telescope.
The exposure time was a cumulative time of 11.3 days during the span from Sept 24, 2003 - Jan 16, 2004.
While you are viewing it think about what you are seeing. These galaxies are not as they are now; but you are seeing them as they were "between 400 and 800 million years...after the big bang."
Now consider that the universe is between 12 and 14 billion years (source: map.gsfc.nasa.gov) and you are seeing the extreme past. Doing the math with the average of both numbers, imaging that the universe is currently a person between 21 and 22 years of age. Now image that you could look at them through a telescope from far away and see them as they were when they were 1 year old. Wow!
"This will hold the record as the deepest-ever view of the universe until ESA, together with NASA, launches the James Webb Space Telescope in 2011."
- I can hardly wait...