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Science
Chris Impey, University Distinguished Professor of Astronomy, University of Arizona

Say hello to Sagittarius A*, the black hole at the center of the Milky Way galaxy

Sagittarius Sagittarius A Milky way University of Arizona M87
This image shows Sagittarius A*, the black hole at the center of the Milky Way galaxy. EHT Collaboration, CC BY-SA

On May 12, 2022, astronomers on the Event Horizon Telescope team released an image of a black hole called Sagittarius A* that lies at the center of the Milky Way galaxy. Chris Impey, an astronomer at the University of Arizona, explains how the team got this image and why it is such a big deal.

1. What is Sagittarius A*?

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