In Toronto, during the cold months of the year, we often get to witness a special celestial phenomenon — an omega-shaped sunrise. This solar mirage (could occur with a sunset too but I haven’t caught this in Toronto yet) is the product of sunlight being refracted by a temperature gradient, which often forms above Lake Ontario in the early morning during the winter months. This morning, because of an overnight drop in temperature, Toronto was treated to a somewhat rare summer mirage.