After Decades of Observations, Astronomers have Finally Sensed the Pervasive Background Hum of...

It is good to see publishing of some amount of evidence supporting what has been thought to be happening in the universe

The very interesting orchestra of "events" throughout the universe that is documented in the body of research is what maintains the "empty space" boundary full of activity at the measurable planck size/oscillation/energy boundary of "empty space".

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"Supermassive black holes are thought to reside at the centers of the largest galaxies in the Universe. When two galaxies merge, the black holes from each end up orbiting each other as a binary system long after the initial galaxy merger. Eventually, the two black holes will unite. In the meantime, their slow dance around each other stretches and squeezes the fabric of space-time, generating gravitational waves that emanate out like ripples in a pond.

Since they are long-lasting, the gravitational-wave signals from these gigantic binaries are expected to overlap, like voices in a crowd or instruments in an orchestra, producing an overall background hum that imprints a unique pattern in pulsar timing data." [. . .]