The E Ring is one of the rings of Saturn. It is the outermost ring, and is extremely wide, beginning at the orbit of Mimas and ends somewhere around the orbit of Rhea. It is a diffuse disk of icy or dusty material. Unlike the other rings, it is composed of microscopic rather than macroscopic particles. Saturns rings; the major rings are labelled This is a list of the 15 named rings of Saturn, and the gaps between them. ... Mimas (mye-mus, Greek Μίμας, Μῑμάντ-) is a moon of Saturn that was discovered in 1789 by William Herschel. ... Atmosphere none Rhea (ree-a, Greek ‘ΡÎα) is the second largest moon of Saturn and was discovered in 1672 by Giovanni Domenico Cassini. ...
Also, E-Ring is the term for the five-floor outer ring of the Pentagon, the U.S. Department of Defense's headquarters building in Virginia.
One of the clues to this theory is that the rings are bright.
The ring's brightness peaks near the orbit of Saturn's moon Enceladus with vertical thickness smallest at this orbit.
Also visible in this image, between the ERing and the overexposed outermost part of the main rings near the lower edge of the frame, is the tenuous, thin, 8000 km-wide G Ring.
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