Amazing pictures of our planet from the perspective of an orbiting satellites. Earth is the third planet of solar system known for having an atmosphere containing free oxygen, oceans of liquid water on its surface, life. Solar system consits of planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. Earth is the fifth largest of the planets in the solar system. The Earth consists of a gaseous atmosphere, the hydrosphere, the lithosphere, mantle, and core.The 71 percent of Earth’s surface is covered by water.