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Two galaxies aligned in a way where their gravity acts as a compound lens

(phys.org)
268 points wglb | 1 comments | 16 Nov 24 16:48 UTC | HN request time: 0s | source
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bparsons ◴[16 Nov 24 20:12 UTC] No.42158887[source]▶
If the lens curved light back toward us, could we see earth several million years ago?
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DoingIsLearning ◴[16 Nov 24 20:50 UTC] No.42159200[source]▶
@Dang is there a version of /best but for comments? The thought experiment in this comment broke my mind.
replies(1): >>42159212 #