Approximately 30.1 AU (astronomical units) from the Sun (Chaisson & McMillan, 2011 p. 316) there is a cold, dark and lifeless planet. We call this planet Neptune, after the Roman god of the sea. The planet Neptune is very complex with many different facets. Almost every aspect of the planet will be discussed below, from its history, to the overall composition of the planet, and everything in between. Neptune originated just like all the other planets in our solar system, and condensation theory describes the process by which they formed. format (Chaisson & McMillan, 2011 p. 147). The basic thought process behind condensation theory is that when a star is born a cloud of dust and gas forms and begins to rotate around the parent star, planets then form from the accumulation (or condensation) of these materials (Chaisson & McMillan, 2011 pp 147 and 149). While this is just a basic overview of the theory (and planet formation), it gives us a basic understanding of Neptune's beginnings. The planet has existed for almost five billion years. However, it wasn't discovered until recently (relative to overall life on the planet). Neptune was first discovered in September 1845, again in June 1846, and again later in the summer of 1846; three different men discovered the planet (John Adams was the first, Urbain Leverrier was the second and Johann Galle, the third). As a result, only Adams and Leverrier are credited with the discovery of the planet (Chaisson & McMillan, 2011 p. 315). According to Astronomy Today, Galle was not originally credited with discovering the planet (Chaisson & McMillian, 2011 p.315). However, today he is often credited with the discovery. Another important thing about... half of the paper......051/escape-velocity/Kuhn, K. (2004, June 16). Physics: g force. Retrieved from http://en.allexperts.com/q/Physics-1358/g-force.htmNeptune Celebrates One Year Anniversary (2011). . Malaysia, Lahore: HT Media Ltd. Retrieved from http://search.proquest.com/docview/876038152?accountid=8473Russell, R. (2003, October 31). Neptune Statistics. Retrieved from http://www.windows2universe.org/neptune/statistics.htmlWhat is g-force? (2011). Retrieved from http://www.wisegeek.com/what-is-g-force.htmWhat is g-force: meaning of g-force. (2010). Gforces.net, Retrieved from http://gforces.net/what-is-g-force-meaning.htmlWilliams, D. (2010, November 17). Fact sheet on Neptune. Retrieved from http://nssdc.gsfc.gov/planetary/factsheet/neptunefact.htmlZimmerman Jones, A. (2011). Density: What is density? Retrieved from http://physics.about.com/od/fluidmechanics/f/density.htm