Dust
- Debris disk consists of planetesimals along with fine dust and small amounts of gas generated through their collisions and evaporation. The original gas and small dust particles have been dispersed or accumulated into planets.
- Zodiacal cloud or interplanetary dust is the material in the Solar System created by collisions of asteroids and evaporation of comet seen to observers on Earth as a band of scattered light along the ecliptic before sunrise or after sunset.
- Exozodiacal dust is dust around another star than the Sun in a location analogous to that of the Zodiacal Light in our own Solar System.
Read more about this topic: Circumstellar Disk
Famous quotes containing the word dust:
“The Indian attitude toward the land was expressed by a Crow named Curly: “The soil you see is not ordinary soil—it is the dust of the blood, the flesh, and the bones of our ancestors. You will have to dig down to find Nature’s earth, for the upper portion is Crow, my blood and my dead. I do not want to give it up.””
—For the State of Montana, U.S. public relief program. Montana: A State Guide Book (The WPA Guide to Montana)
“Sometimes Death, puffing at the doore,
Blows all the dust about the floore:
But while he thinks to spoil the room, he sweeps.
Blest be the Architect, whose art
Could build so strong in a weak heart.”
—George Herbert (1593–1633)
“Thus, far from the beaten highways and the dust and din of travel, we beheld the country privately, yet freely, and at our leisure.”
—Henry David Thoreau (1817–1862)