After-light is a common term that describes the soft, diffused glow visible in the sky after sunset or before sunrise. The phenomenon is caused by the scattering of sunlight by the Earth's atmosphere, and is also known as twilight or dusk. However, there are several other synonyms for this beautiful time of day, including gloaming, crepuscule, eventide, evenfall, and nightfall. Each of these terms carries its own nuances, but all evoke the sense of peacefulness and tranquility that comes with the end of the day and the approach of night. Whether watching the after-light from a mountaintop or a city street, it is always a magical moment.