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Not enough disagreement in the transcripts to form camps. These are the positions taken by people with demonstrated expertise on this topic first, then by how many people heard them on it, then by VoiceRank.
Colliding galaxies are a result of gravity overcoming the expansion of the universe at close distances.
“So it can overcome the expansion of the universe being so close to us. If the Andromeda galaxy were at any farther distance, the expansion of the universe would override it. So generally you have nearby galaxies colliding towards one another.”
StarTalk · Jun 2019 · 1 episode · 327K views on this topicPositions are extracted from transcripts by a model and may misattribute who said what. Every quote links to the episode it came from.