Lesson 5 — How We Observe Black Holes
Black Holes — What Really Happens When Space Ends
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Learning Material
5 pagesLesson 5 — How We Observe Black Holes
Understanding the Complex: Black Holes — What Really Happens When Space Ends
Anchor continued: Sgr A — 26,000 light-years away, completely invisible to optical telescopes.*
Black holes emit no light. They're defined by the fact that light can't escape them. So how do we observe something that, by definition, is invisible?
Three methods. Each reveals something different.