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A comment on What Is a Blazar? It’s Like Staring Down the Barrel of a Black Hole. Parent comment

Re:What Is a Blazar? It’s Like Staring Down the Barrel of a ... by perl4ever on Friday July 13, 2018 @09:23PM (#17528213)
You're saying there are blazars everywhere, such that no matter the trajectory, it would match to something? That doesn't sound right.
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Re:What Is a Blazar? It’s Like Staring Down the Barrel of a ... by SiempreViernes on Saturday July 14, 2018 @02:43PM (#17531691)
No, I'm saying cosmic rays come from anywhere (as the get deflected by magnetic fields) and when hitting the atmosphere they can create high energy neutrinos that can look like they are from space despite actually being from the atmosphere.
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