かわいい怖い

My name is Olivia. Free spirit, old soul, tea fanatic, explorer of the mind, body, and earth. 757 Let's be friends.;ask.

sagansense:

Green flash is an optical phenomena in which the top edge of the Sun momentarily turns green. It occurs shortly after sunset or before sunrise.

When the sun starts to dip below the horizon the colors of the spectrum disappear one at a time, starting with those with the longest wavelengths to those with the shortest. At sunrise, the process is reversed, and a green flash may occur as the top of the sun peeks above the horizon.

Image credit: Gianluca Lombardi

via sci-universe

(via holocephalic)