The newly-discovered radio jet spans an astonishing 215,000 light-years, and is associated with J1601+3102, an extremely radio-loud quasar that existed just 1.2 billion years after the Big Bang. This structure, observed by the Low Frequency Array (LOFAR), the Gemini Near-Infrared Spectrograph (GNIRS) on the Gemini North telescope, and the Hobby Eberly Telescope, is the largest radio jet ever found this early in the history of the Universe.
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