... Caught in the Afterglow . ... Explanation: In this artist's illustration , two distant galaxies formed about 2 billion years after the big bang are caught in the afterglow of GRB090323 , a gamma-ray burst seen across the Universe . Shining through its own host galaxy and another nearby galaxy, the alignment of gamma-ray burst and galaxies was inferred from the afterglow spectrum following the burst's initial detection by the Fermi Gamma Ray Space Telescope in March of 2009. ...