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How Edwin Hubble discovered galaxies outside our own
- Nomentatus 10y agoHubble provided the evidence, proving that philosopher Immanuel Kant's hypothesis, that some nebula were other galaxies, was correct. But see also: http://oneminuteastronomer.com/1562/mule-driver-measure-universe/ http://oneminuteastronomer.com/1562/mule-driver-measure-univ...