How does the lensing work? Why doesn't the galaxy in the middle between us and t... | Hacker News

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lordnacho on Sept 9, 2020 | parent | context | favorite | on: Why is there a normal galaxy sitting at the edge o...

How does the lensing work? Why doesn't the galaxy in the middle between us and the faraway galaxy pollute the image with its own light? It it separated by frequency or some trick?

sp332 on Sept 10, 2020 [–]

The light bends around the galaxy. You're right that looking straight at the galaxy wouldn't work, but looking just a tiny bit to the sides does.

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