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What Happens at the Event Horizon? | Space Time | PBS Digital Studios
PBS Space Time
PBS Space Time explains what happens as you approach and cross a black hole's event horizon, using Penrose diagrams and light cones as the tool for understanding spacetime there.
Commenters call it a short, clean, visual explanation of the infalling-particle question and of Penrose diagrams.
4 Hacker News mentions · 2019–2025