Gamma-ray bursts
Light from an explosion more than 12 billion years ago of a massive star at the end of its life reached Earth recently.

Images of its afterglow at peak and as it fades, circled in yellow and blue, were captured by Southern Methodist University's ROTSE-IIIb telescope at McDonald Observatory, Fort Davis, Texas. A bright star sits alongside the afterglow from GRB 140419A.
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