Once a star, similar to our Sun, ceases fusing hydrogen, it will undergo a violent stage of stellar evolution resulting in the production of a small, hot and dense stellar core. This is a white dwarf. It has been demonstrated that although the inner planetary system is engulfed during the red giant stage, the outer planetary system can survive. Evidence for the survival of outer planetary systems to the white dwarf phase comes from observations of planetary material polluting the atmospheres of white dwarfs. At least 30% of white dwarfs have been observed with elements heavier than helium in their atmospheres. The rapid gravitational settling times in comparison to the white dwarf's cooling age implies ongoing accretion from an external reservoir. So we are witnessing exo-planetary destruction in action. These white dwarfs systems with atmospheric pollutants are called polluted white dwarfs.