The Universe May Have Started with a Dark #BigBang, The Big Bang may have not been alone. Another Big Bang that flooded our universe with dark matter particles. And we may be able to detect it. #cosmology #astronomy
https://www.universetoday.com/160285/the-universe-may-have-started-with-a-dark-big-bang/
Just had a look at this, and sort of get the idea,
Same here, kinda picking up bits as I go, pbs space time (youtube) is good but there is also a similar peertube physics channel