Thanks for taking the time to reply Drakkith
I guess my confusion comes from focusing on one single element of the argument for expansion, measurements of red shift. Alone it doesn't make the case. It is only when you add it to other elements that the total argument becomes convincing. For...
I have always been puzzled by how we see an object from the past and can tell what it is doing now if it is billions of light years away.
Given that;
1. the shift in the measurement of the light spectrum indicates the speed at which an object is retreating or getting closer.
2. that...