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Space Science

What Do You Call a Bunch of Black Holes? (nytimes.com) 155

What do you call a collection of black holes? The question has taken on an urgency among astronomers inspired by the recent news of dozens of black holes buzzing around the center of a nearby cluster of stars. The New York Times: In the last few years, instruments like the LIGO and Virgo gravitational-wave detectors have recorded space-time vibrations from the collisions of black holes, making it clear beyond doubt that these monstrous concentrations of nothingness not only exist but are ubiquitous. Astronomers anticipate spotting a great number of these Einsteinian creatures when the next generation of gravitational-wave antennas are deployed. What will they call them? There are gaggles of geese, pods of whales and murders of crows. What term would do justice to the special nature of black holes? A mass? A colander? A scream?

Jocelyn Kelly Holley-Bockelmann, an astrophysicist at Vanderbilt University, and colleagues are developing an international project called the Laser Interferometer Space Antenna, or LISA, that will be able to detect collisions between all sizes of black holes throughout the universe. She was trying to run a Zoom meeting of the group recently "when one of the members said his daughter was wondering what you call a collective of black holes -- and then the meeting fell apart, with everyone trying to up one another," she said in an email. "Each time I saw a suggestion, I had to stop and giggle like a loon, which egged us all on more." The question was crowdsourced on Twitter recently as part of what NASA has begun calling black hole week (April 12-16). Among the many candidates so far: A crush. A mosh pit. A silence. A speckle. A hive. An enigma. Or a favorite of mine for of its connection to my youth: an Albert Hall of black holes.

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What Do You Call a Bunch of Black Holes?

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