This is my 2 cents, I have an engineer background, not space science background. At earth or above sea, we use cooling to maintain the temperature below 60 deg

This is my 2 cents, I have an engineer background, not space science background. At earth or above sea, we use cooling to maintain the temperature below 60 degrees, or 80 or 100 or something. Shadow of space is -157 degrees, the cooling design will be different.