I've figured out a way to change the colour of the atmosphere on my Earth model, however the output node only has 1 option for "Color" and "Alpha". I need to be able to attach the blue part and the orange part to the output in the same way.
This is what it looked like before. The Extended Material node needs to attach to the output with both "color" and "alpha".
I've done the same node set up for the atmosphere as I did with the day to night textures. I've tested without attaching the alphas and it works perfectly, however the alphas MUST connect in order to be transparent. Is there a node that can send the color and alpha of both materials to the output?