Each day we feature a different image or photograph of our fascinating universe, along with a brief explanation written by a professional astronomer. The image above is part of the Hubble Deep Field and represents humanity's most distant yet optical view of the Universe . The dimmest objects are the most distant galaxies and reveal what the Universe looked like in the extremely distant past, perhaps less than one billion years after the Big Bang . With each additional exposure, fainter objects were revealed. The final result can be used to explore the mysteries of galaxy evolution and the infant Universe .
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