The Hubble Ultra Deep Field (March 9, 2004)
The image above was taken by the Hubble Ultra Deep Field (HUDF) and it it is the deepest portrait of the visible universe ever achieved by humankind. the million-second-long exposure shows the first galaxies that emerged from the so called "dark ages," which was the time shortly after the big bang when the first stars reheated the cold, dark universe. This "dark age" was about thirteen billion years ago, which is only five percent of its current age. The image is actually two separate images taken by Hubble's Advanced Camera for Surveys and the Near Infrared Camera and Multi-object Spectrometer. After staring for about three months at the same spot, this new HUDF is four times more sensitive in most colors than the original Hubble Deep Field (HDF). This is extremely interesting because scientists have had the ability to study this image for years now and come up with better ways to understand how stars and galaxies formed in the earlier universe.
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