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Hubble's Deepest View Ever of the Universe Unveils Earliest Galaxies

Hubble Sees Galaxies Galore
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Astronomers at the Space Telescope Science Institute today unveiled the deepest portrait of the visible universe ever achieved by humankind. Called the Hubble Ultra Deep Field (HUDF), the million-second-long exposure reveals the first galaxies to emerge from the so-called "dark ages," the time shortly after the big bang when the first stars reheated the cold, dark universe. The new image should offer new insights into what types of objects reheated the universe long ago.

This historic new view is actually two separate images taken by Hubble's Advanced Camera for Surveys (ACS) and the Near Infrared Camera and Multi-object Spectrometer (NICMOS). Both images reveal galaxies that are too faint to be seen by ground-based telescopes, or even in Hubble's previous faraway looks, called the Hubble Deep Fields (HDFs), taken in 1995 and 1998.

Credit: NASA, ESA, S. Beckwith (STScI) and the HUDF Team

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About Survey > Hubble Ultra Deep Field
About Cosmology > Distant Galaxies
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March 9, 2004

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