Blue and violet are scattered by air molecules more than other colors. During sunset, the sun's position on the horizon means there is more opportunity for the light to scatter. This means that ...

Enjoy dark skies for evening observing, then catch a meteor shower and a planetary conjunction in the morning sky this week.

The horizon glows like a postcard come to life. Local cafes come alive as the sun dips below, casting silhouettes of lovers and travelers. Witness the sunset over this salt-white desert ...