The last and furthest planet is Pluto, which is a dwarf planet.
After the sun, the second brightest object in the sky is the moon. It orbits around the earth once monthly. The impact theory suggests that the moon got formed out of collision between the earth and a very large object, the size of Mars or more. The moon got borne out of the ejected materials from the collision.
At the center of the solar system is the sun. The sun is the largest object in the solar system. The sun makes up close to 99.8% of the solar systems mass (Merali & Skinner, 2008). The heat and light shed by the sun makes life possible on planet earth. The planets orbit the sun in paths called ellipses, which are oval shaped.
A solar system references a star and all the objects that orbit around it. In our solar system, the sun is the star. The sun as the center of our solar system illuminates the light and heat that make it possible for life within any of the planets (Merali & Skinner, 2008). The planet earth is the only one proven to support life among the system. The planets Mercury and Venus are too close to the sun making them too hot and dry with little atmosphere. The outer planets are also unable to support life because they lack atmosphere, solid ground, oxygen and contain too much