Hopefully somebody knowledgeable in these questions will speak up. I am not knowledgeable. Here is where I might start if I had your questions: https://en.wik

Hopefully somebody knowledgeable in these questions will speak up. I am not knowledgeable. Here is where I might start if I had your questions: https://en.wikipedia.org/wiki/Cosmology https://en.wikipedia.org/wiki/Cosmology Read the page and follow the links outward, according to your questions and interests. https://en.wikipedia.org/wiki/Portal:Contents/Portals#Natural_and_physical_sciences https://en.wikipedia.org/wiki/Portal:Contents/Portals#Natura... Good luck. Report back when you have an answer. :)