Interacting Spiral Galaxies NGC 2207 and IC 2163. The gravitational forces of the large NGC 2207 galaxy are distorting the smaller galaxy. Image Credit: NASA, ESA, and The Hubble Heritage Team [STScI].
Glowing, Glowing, Glowing, . . . . Gone?
All kinds of things give off light in a way that is useful to us, either naturally or by design. Some objects are designed to produce bright light to work by, others have just enough of a glow to tell us where things are located in the dark. All of these glows have something in common, they are created from the changes happening to electrons in the atoms that are glowing. Light, whether it is visible, infrared, ultraviolet, or even farther afield, relates to electrons and atoms.