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  • This artist's illustration shows what one of the very first galaxies in the Universe might have looked like. High levels of violent star formation and star death would have illuminated the gas filling the space between stars, making the galaxy largely opaque and without a clear structure.
    James Josephides (Swinburne Astronomy Productions)
    This artist's illustration shows what one of the very first galaxies in the Universe might have looked like. High levels of violent star formation and star death would have illuminated the gas filling the space between stars, making the galaxy largely opaque and without a clear structure.
  • This deep-field view of the sky (centre) taken by NASA's Hubble and Spitzer space telescopes is dominated by galaxies -- including some very faint, very distant ones -- circled in red. The bottom right inset shows the light collected from one of those galaxies during a long-duration observation.
    NASA/JPL-Caltech/ESA/Spitzer/P. Oesch/S. De Barros/I.Labbe
    This deep-field view of the sky (centre) taken by NASA's Hubble and Spitzer space telescopes is dominated by galaxies -- including some very faint, very distant ones -- circled in red. The bottom right inset shows the light collected from one of those galaxies during a long-duration observation.
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