First photo of a black hole at the center of the Milky Way

Astronomers at the European Southern Observatory (ESO) announcedthat, using the Event Horizon Telescope, they were able to obtain the first image of the supermassive black hole Sagittarius A *, hiding in the center of our galaxy.

The image, presented at six simultaneous press conferences around the world, showed a bunch of radio emission framing the "void" of the black hole. In 2019 the same team photographed black hole at the center of the M87 galaxy.

This supports the theory that at the center of almost every galaxy, including ours, is a black hole that could be millions or billions of times more massive than our Sun.

Sagittarius A* is a much more difficult target than the black galaxy in the first image: both its weight and dimensions are less than a thousandth of the black hole of M87, which means that one is moving a thousand times faster. The massive monster at the center of M87 barely moved during the week of observations, while the view of Sagittarius A* changes every five minutes. Astronomers have had to work hard to separate what changes from what remains unchanged - outlining the boundaries of a black hole, and the matter that moves in it.