Kerr object was one of the vocabulary words listed on the chart "A Tunnel in the Sky". This chart, depicting the Bajoran wormhole, was seen in the schoolroom aboard Deep Space 9 in 2369. (DS9: "In the Hands of the Prophets")

Kerr object is a reference to an object, such as light, that interacted with a black hole or wormhole. It is named after mathematician Roy Kerr.

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