The Hubble Space Telescope (HST) is one of the great experiments in human history. It has changed the way we literally see space, and has given us countless images that were once unimaginable. Check out what is called the Deep Field image, where the telescope focuses on one tiny spot of space for an extended period of time, and allows individual photons from very distant objects to be recorded. The result is thousands of new galaxies we had never seen before! This video looks at how astronomers do this, and how they got a 3-D image of the Deep Field.
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