Spectroscopic confirmation of a galaxy at redshift z = 8.6

  title={Spectroscopic confirmation of a galaxy at redshift z = 8.6},
  author={Matthew D. Lehnert and N. P. H. Nesvadba and J-G. Cuby and A. M. Swinbank and Simon L Morris and Benjamin Cl{\'e}ment and C. J. Evans and Malcolm N. Bremer and S. Basa},
Galaxies had their most significant impact on the Universe when they assembled their first generations of stars. Energetic photons emitted by young, massive stars in primeval galaxies ionized the intergalactic medium surrounding their host galaxies, cleared sightlines along which the light of the young galaxies could escape, and fundamentally altered the physical state of the intergalactic gas in the Universe continuously until the present day. Observations of the cosmic microwave background… 

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