How many galaxies can we see

  Between September 2003 and January 2004, the Hubble Space Telescope took the longest ever exposure of the sky in the history of astronomy-more than 270 hours. Based on the number of galaxies visible in this spectacular image-dubbed the Hubble Ultra Deep Field-scientists estimate that with the technology available today some 50 billion galaxies can be observed.

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authorHello, my name is Ravi R Naik. I'm a 20 year old self-learned blogger and writer.
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