https://www.youtube.com/watch?v=t8tqgntbjyE To summarize, it is a presentation by an Electrical Engineer on how Einstein's theories are NOT good enough to describe what astronomers see in the sky, and how research in plasma provides theories that more simply explain cosmological phenomena. Interesting watch. He puts theories of black holes and dark matter in the "fairy dust" category. :) He also mentions laboratory experiments where they were able to make plasma look like a galaxy. It sounds a lot like what Eric Dollard mentioned in his Anti-Relativity lecture. Sadly, there is no mention of Tesla. :( Worth a look. Cheers.