Illustration of the black hole pair (IMAGE)

University of Turku

Illustration of the black hole pair

Caption

The black holes in orbit around each other. Both black holes have jets associated with them: the larger one with reddish colour, and the smaller one with a yellowish colour jet. Normally only the reddish jet is seen, but during the 12-hour period on November 12, 2021, the smaller jet dominated, and gave a direct signal from the smaller black hole, and was observed for the first time.

Credit

NASA/JPL-Caltech/R. Hurt (IPAC) & M. Mugrauer (AIU Jena)

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