Shiny silver saucer over Ahwatukee, Phoenix, AZThree of our family members witnessed a shiny silver disk hovering and moving slowly. It rapidly moved acrosss the sky, in front of us. It stayed there about 20 seconds and speed up and moved away and out of site. The entire incidence took about 2 minutes. We had time to show our son and question what the object might be. The object was the size of a airplane nose to tail from our distance. It had no wings and was very shiny, which is what grabbed my attention. It appeared to be shaped like a saucer.My husband was the driver, our son and I were observers. Both my husband and I are dentists. Our son is 10 years old.