In a pair of merging supermassive black holes, a new method for measuring the void

In a pair of merging supermassive black holes, a new method for measuring the void

In this simulation of a supermassive black hole merger, the blue-shifted black hole closest to the viewer amplifies the red-shifted black hole in the back through gravitational lensing. The researchers discovered a distinct dip in brightness when the closest black hole passed in front of the shadow of its counterpart, an observation that could be …

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