V shaped UFO

On the 20 April 2010 at around 19:55 pm my husband, son and I were coming home after doing some shopping. As we were just about to walk into the house, my son asked me where the moon was. I looked up and that is when I saw this V shaped object gliding over our home. I grabbed my husband by the arm and pointed at the object. My husband's first response was " what is that?" We stood there in amazement looking at this object turning right and vanishing into the night sky. It was almost invisible against the night sky. It looked like it had smoke or something coming off it, but this was hardly visible. I was shaped like a huge open V. I have never seen anything like this before in my life.