Last nights Eclipse - is it true, why it was rusty & ruddy?

Very true. Last night we had a full eclipse as the Earth came between the sun and the moon. Therefore causing the moon to be in the Earth's shadow. This is also a rarity because the moon norminally is above or below the Earth's plane. Alll of the dirt in the Atmosphere causes the moon to glow like a redish colour. Mostly due to Pollution. Hope this helps :)