HomeReportsHow many black holes are there in the universe?

How many black holes are there in the universe?

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of “Ask a Spaceman” and “Space Radio,” and author of “How to Die in Space.” Sutter contributed this article to Space.com’s Expert Voices: Op-Ed & Insights.

Black holes are notoriously hard to detect, since they are as black as the space surrounding them. We can only pinpoint them in special circumstances, like when they pull down gas from a neighboring star or merge together, releasing a flood of gravitational waves.



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