Each of the black holes has an estimated mass of roughly 50 million times the mass of our star, the Sun. The discovery of this merger so early in the Universe indicates that the growth of these objects in the centers of galaxies occurred very rapidly.
"Our findings suggest that merging is an important route through which black holes can rapidly grow, even at cosmic dawn," said Hannah übler of the University of Cambridge. "Together with other Webb findings of active, massive black holes in the distant Universe, our results also show that massive black holes have been shaping the evolution of galaxies from the very beginning."
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