Reading: The Life Cycle of Stars
Evidence supporting the Big Bang theory:
https://www.youtube.com/watch?v=aPStj2ZuXug
The red shift and the expanding universe:
https://passmyexams.co.uk/GCSE/physics/the-expanding-universe-red-shift.html
How chemical elements are made:
https://www.youtube.com/watch?v=wgUIB4tD0cM
The Sun: