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Q&A What would be the implications of the cosmos actually being filled with ether?

I'm working on a space-fantasy setting and one of the cosmological quirks is that the cosmos, instead of being a vacuum, is actually filled with a gaseous substance. As a result, the entire cosmos ...

3 answers  ·  posted 10y ago by Trismegistus‭  ·  last activity 9y ago by Trismegistus‭

Question space physics