Black holes create some of the largest structures in the universe. If our eyes could see radio, the eruption from the black hole in galaxy Centaurus A would appear 16 times as wide as the full Moon. icrar.org/centaurus/
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In visible light, Centaurus A is an odd-looking galaxy. Fill in the picture with radio & x-rays and you see the tremendous mayhem created by the massive black hole at its center.
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Radio eyes don't have to look anything like human eyes. This is the Murchison Widefield Array, the new radio telescope that revealed the wild activity around galaxy Centaurus A. mwatelescope.org
