We can thank our atmosphere for that. Twilight is defined as the diffused light from the sky during the early evening or early morning, when the sun is below the horizon and its light is refracted ...

There is something transformational about twilight. When the sun has just set in the west, the sky changes from the vibrant blue of afternoon to a more relaxed hue, as if it’s settling down for ...

What is twilight? Roughly speaking, it is the time between when the sun sets and when the sky becomes totally dark. Based on how far the sun is below the horizon, scientists distinguish among ...

This week is also good for comet-spotting, with Comet SWAN lurking in the northeastern sky an hour before sunrise. However, it’s only 10º up, and also only visible in brightening twilight skies ...

Here’s how it works. What is twilight? Roughly speaking, it is the time between when the sun sets and when the sky becomes totally dark. Based on how far the sun is below the horizon ...