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Black Holes and SpacetimeModule 5How Instruments Read Black Holes
Module 5 / Lesson 19 of 2436 min
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What Do Lensing and Horizon-Scale Images Show?

Why is a bright ring and dark depression not a photograph of the black hole's interior?

You connected synchronized radio stations, visibility measurements, independent image reconstruction, lensing, shadow, and the smaller event-horizon scale.

A restrained artistic scene of radio dishes under a dark sky with a small orange ring representing a horizon-scale radio target.
Vastward artistic reconstruction. The observatory and ring establish the observing method; this is not an EHT result image or a literal view of one co-located telescope array.

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