The first picture of a black hole.

Astronomers have taken the first image of a black hole in the heart of a distant galaxy called M87 in the cluster of Virgo galaxies.

It is 40 billion kilometers long and 3.3 million times the size of the earth.

The Horizon Telescope event used a network of eight telescopes from around the world to obtain the image.

Read more: First published black hole image.

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