How Radio Astronomy Reveals the Universe – Quanta Magazine

If you ask an astronomer to choose the single most exciting picture in all of astronomy, many of us will point to a familiar orange ring. At a glance it may not look like much a fuzzy glowing doughnut, bulging slightly at the bottom and, as of last month, streaked with curving lines but in reality this unassuming circle is humanitys first glimpse of a black hole, with the colors chosen not to mimic realism, but to indicate the intensity of radio emissions.
Captured in a picture so sharp that it…

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