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A comment on How Do You Take a Picture of a Black Hole?. Parent comment

Re:How Do You Take a Picture of a Black Hole? by shiandow on Friday October 30, 2026 @09:28AM (#50303586)
Could you provide a bit more detail? I don't quite see how one would define the event horizon for instance.
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Re:How Do You Take a Picture of a Black Hole? by post-it on Friday October 30, 2026 @09:33AM (#50303653)
The radius at which the escape velocity is the speed of light.
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