mercury's orbit
71Vulcan (hypothetical planet) — Vulcan was a small planet proposed to exist in an orbit between Mercury and the Sun in a 19th century hypothesis. This hypothesis has now been rendered obsolete by Albert Einstein s theory of general relativity.Argument for Vulcan s existenceIn… …
72Tests of general relativity — General relativity Introduction Mathematical formulation Resources Fundamental concepts …
73Kepler problem in general relativity — The Kepler problem in general relativity involves solving for the motion of two spherical bodies interacting with one another by gravitation, as described by the theory of general relativity.Typically, and in this article, one body is assumed to… …
74Mariner 10 — Artist impression of the Mariner 10 mission. Operator NASA / JPL Mission type Flyby Flyby of …
75Tidal locking — A separate article treats the phenomenon of tidal resonance in oceanography. : See the article tidal acceleration for a more quantitative description of the Earth Moon system. Tidal locking occurs when the gravitational gradient makes one side of …
76(33342) 1998 WT24 — mp|(33342) 1998 WT|24 (also written (33342) 1998 WT24) is an Aten asteroid located in Venus zone of influence that has frequent close encounters with Mercury, Venus, and Earth. It is also one of the best studied potentially hazardous… …
77Discovery and exploration of the Solar System — The Sun and planets of the Solar System. (Pluto is now classed as a dwarf planet, and is not shown). The relative sizes of objects are drawn to scale; the distances between them are not. For many thousands of years,[clarification needed] …
78Gravitation — is a natural phenomenon by which objects with mass attract one another [http://math.ucr.edu/home/baez/physics/Relativity/GR/grav speed.html Does Gravity Travel at the Speed of Light?] , UCR Mathematics . 1998. Retrieved 3 July 2008] . In everyday …
79Vulcanoid asteroid — Vulcanoids are a hypothetical group of asteroids that may orbit in a dynamically stable zone between 0.08 and 0.21 astronomical units from the Sun, well within the orbit of Mercury. They take their name from the hypothetical planet Vulcan, which… …
80Models of scientific inquiry — In the philosophy of science, models of scientific inquiry have two functions: first, to provide a descriptive account of how scientific inquiry is carried out in practice, and second, to provide an explanatory account of why scientific inquiry… …
