Why Dark Horse
This region of dark nebulae is called Dark Horse because it resembles the side silhouette of a horse and appears dark as compared with the background glow of stars and star clouds. It is also known as "Great" because it is one of the largest (in apparent size) groups of dark nebulae in the sky.
Read more about this topic: Dark Horse (astronomy)
Famous quotes containing the words dark and/or horse:
“Later you hear it wander the dark house
Like a mother who rises at night to seek a childhood picture;
Or it goes to the backyard and stands like an old horse cold in the
pasture.”
—Robert Penn Warren (1905–1989)
“The horse is taught his manage, and no star
Of wildest course but treads back his own steps;”
—William Wordsworth (1770–1850)