A dormant black hole found outside the Milky Way challenges what we know about the formation of black holes.
) The team says that other candidates have been proposed as the first “dormant” stellar-mass black hole. However, this is the first time one has been unambiguously detected outside our own galaxy.
A stellar-mass black hole forms when a massive star reaches the end of its life. At that point, the star collapses under the weight of its own gravity. If the black hole happens to be in a binary system, where two stars revolve around each other, then the black hole begins to orbit the other star. However, most black holes remain active,This is the first image of Sgr A*, the supermassive black hole at the center of our galaxy.
However, we have yet to find many of these mysterious cosmic entities. In fact, this is the first dormant black hole we’ve discovered outside of our galaxy. The discovery was only possible thanks to six years of observations captured by the European Southern Observatory’s Very Large Telescope. As we discover more dormant black holes, we may learn more about what causes these massive cosmic objects to interact with the world as they do. And, perhaps, we could even learn more about the supermassive black hole that lies at the
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