_Bohemian 🌙 Witch_ @itsthewildrose - Tumblr Blog

Dark Autumn

Won’t you come into the garden? I would like my roses to see you.

Richard B. Sheridan (via dehanginggarden)

#roses #garden #botanical #botanics #poetry #poem

"Keepers of private note books are a different breed altogether, lonely and resistant rearangers of things, anxious malcontents, children afflicted apparently at birth with some presentiment of loss."

Joan Didion

#joan didion #writing #writer #poetry #essay #essayist #ilovereading #the smell of books #soft #pink pastel

cosmicvastness

NASA Astronomy Picture of the Day 2016 March 22

Rainbow Airglow over the Azores

Why would the sky glow like a giant repeating rainbow? Airglow. Now air glows all of the time, but it is usually hard to see. A disturbance however – like an approaching storm – may cause noticeable rippling in the Earth’s atmosphere. These gravity waves are oscillations in air analogous to those created when a rock is thrown in calm water. The long-duration exposure nearly along the vertical walls of airglow likely made the undulating structure particularly visible.

OK, but where do the colors originate? The deep red glow likely originates from OH molecules about 87-kilometers high, excited by ultraviolet light from the Sun. The orange and green airglow is likely caused by sodium and oxygen atoms slightly higher up. The featured image was captured during a climb up Mount Pico in the Azores of Portugal. Ground lights originate from the island of Faial in the Atlantic Ocean. A spectacular sky is visible through this banded airglow, with the central band of our Milky Way Galaxy running up the image center, and M31, the Andromeda Galaxy, visible near the top left.