December 3, 2017
Q&A: Measuring a Black Hole’s Spin and more
In this week’s question show, Fraser explains how astronomers measure the spin rate of black holes, other uses of gravitational slingshots, and why everyone is talking about Patreon.
Comments (1)
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Twin3 · December 3, 2017
The thought of galaxy sized black holes spinning undetectable through intergalactic space is a little spooky. I mean who'd want their homely little galaxy to get in the way of one of those beasts? Do we even know how many of those things are "missing" in our backyard? Merged galaxies with only one would either have ejected one or merged their black holes right? I guess I'm asking, how likely is it that one of those suckers is going to ruin someones otherwise perfectly good day sometime in the future?