Speaking of lights in the sky, I recently fell into a wikipedia rabbit hole and learned about the Gegenschein[0]. This is the backscatter reflection of sunlight

Speaking of lights in the sky, I recently fell into a wikipedia rabbit hole and learned about the Gegenschein[0]. This is the backscatter reflection of sunlight from interplanetary dust. You need an extraordinarily dark sky to be able to see it. [0] https://en.wikipedia.org/wiki/Gegenschein https://en.wikipedia.org/wiki/Gegenschein