Future of Earth Sun. The drag from the solar atmosphere may cause the orbit of the Moon to decay. Once the orbit of the Moon closes to a distance of , it will cross the Earth's Roche limit. This means that tidal interaction with the Earth would break apart the Moon, turning it into a ring system. Most of the orbiting ring will then begin to decay, and the debris will impact the Earth. Hence, even if the Earth is not swallowed up by the Sun, the planet may be left moonless. The ablation and vaporization caused by its fall on a decaying
Sun and Moon (Middle-earth) the Narsilion, the "Song of the Sun and Moon". The published "Silmarillion" states that the Sun was created by the Vala Aulë; he and his people made a vessel to hold the radiance of the last fruit of Laurelin. The vessel of the sun was guided by Arien, a Maia. Names of the Sun amongst the Elves included Anar or "The Fire-golden", a name given to it by the Vanyar; Anor, the common name for the Sun in Sindarin, as seen in "Minas Anor" (later Minas Tirith) and the Gondorian province of "Anórien"; and Vása, or "Heart of Fire", a