(12-10-2018, 11:01 AM)PaulP link Wrote:How's that dark energy / dark matter proof going ? Nearly 100 years, tick tock, tick tock.
You keep making the same mistake, the evidence and data is the proof, the explanation is the part that is lacking.
We do not need all the answers of how and why to know something is real, but we do need some evidence to start!
Afterwards,we can make a hypothesis of why and then look for further proof, like the prediction of the existence of Einstein Rings and their ultimate detection.
Further if we look in wavelengths invisible to our eyes, we can see things like the bullet cluster, and how the interaction between normal visible and dark matter has changed the flow of dust and gas. Wikipedia gives an excellent plain language explanation as to why.
It might even help you with that earlier point No.1!

https://en.wikipedia.org/wiki/Bullet_Clu...ark_matter
Of course if you do not trust wikipedia, it's very good to be sceptical, then have a browse on the Arxiv for any number of hundreds of in depth papers including published data on the matter. Pun intended!
"Ruck, ruck, ruck, ruck ....... Ruck, ruck, ruck, ruck"

