May 26, 2011 - Astronomy Now
After two years of analysing images and data from gamma-ray burst (GRB) 090429B, astronomers estimate that its light began travelling on its journey just 520 million years after the Universe began.
GRBs are the brief burst of high-energy radiation that mark the death of massive stars. Over time this emissions fades to an afterglow of light at other wavelengths. Initially discovered by the Swift satellite, the subsequent afterglow was detected by the Gemini North telescope at infrared wavelengths.
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