Venus -- Venus is one of the brightest objects in the sky after the sun and the moon. It is named after the Roman god of love and the planet is thought to control love in astrology. The planet is also thought to affect things like beauty, harmony and it plays an important role in people wanting or not wanting to get along. Throughout time and culture, Venus has represented peace, love and human potential. Venus is the planet for Friday and in Chinese astrology it is associated with metal.
Mars -- Maybe no other planet is better known than Mars. The planet's place as bringer or war, aggression and terror is well known in most every culture. It is also associated with confidence and impulsiveness. Mars is usually associated with Tuesday and it is a fire element in Chinese astrology. Mars role as a bringer of war is apparent throughout human literature highlighted by H.G. Wells The War of the Worlds where invaders from Mars come to Earth to wipe out human civilization.
Jupiter -- The biggest planet in the solar system is associated with happiness and joy. Jupiter rules over Thursday and is also associated with higher education, religion and growth. Many also believe Jupiter plays a role in protection, since it does protect the Earth from many wayward comets and asteroids by using it's gravitational pull to absorb many hits that would otherwise strike the Earth.
Saturn -- The final planet in the original seven planets that ruled astrology for years, Saturn is seen as cold and lifeless and is associated with ideas such as structure and sadness. In India, the planet is thought to bring bad luck. Saturn is tied in with the day Saturday and it is an Earth element in China.
Uranus-- While some astrologers don't even acknowledge Uranus because it was not one of the original seven bodies, to the rest of the astronomers who have accepted it, Uranus stands for ideas and genius. It is also associated with controversial or extreme politics, as well as modern inventions. The association of Uranus with these things stems from the time of its discovery being so closely associated with the French Revolution and the American war for independence.