In this photo of our dear planet Earth taken from space, darkness slowly fades away as we Earthlings experience twilight on the planet. As the Latin saying goes, “post tenebras lux” — “after darkness, light”.
With the Sun illuminating the scene from the right, the cloud tops reflect gently reddened sunlight filtered through the dusty troposphere, the lowest layer of the planet's nurturing atmosphere.
Magnificent.
(Image Credit: ISS Expedition 2 Crew, Gateway to Astronaut Photography of Earth, NASA)