A recent breakthrough in astronomic technology has led to the greatest image of a black hole ever taken. This image, of the supermassive black hole at the centre of galaxy M87, was created by the Event Horizon Telescope (EHT) collaboration and released on April 10th, 2023. The resolution of the image is unprecedented, providing astronomers with a wealth of new information about the black hole. The EHT team was able to measure the black hole’s diameter as 42 billion km, nearly three million times the size of the Earth. The image also revealed the black hole’s spin at half the speed of light, and the presence of a hot ring of plasma swirling around it. This discovery marks a new era in the understanding of black holes and the universe itself.

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source: Phys.org