Witnessed V shaped lights moving without sound over Denver, Colorado for 20 secondsOn Thursday, February 26, 2009, at approximately 8:40pm my mother and I witnessed some strange lights over Denver, Colorado. Her home is located in the central Denver area in the 80204 zip code. As we were preparing to enter her home, she mentioned that the stronger than normal winds that the Denver metro area experienced had cleared the pollution and made the stars appear brighter. As she mentioned the clearer night sky, we looked up, initially to the south. As we looked up, a brighter light caught our attention approaching from the southeast moving towards the northwest. The light initially appeared to be a shooting star, but was not as vibrant as a star and not moving as rapid as a shooting star either. As the light moved over our heads heading towards the northwest, it appeared to be not just one light, but a group of about six lights in the shape of the letter V, or very similar to birds flying in a group. The shape of the V formation was not perfectly symmetrical like you would see from lights on the tips of a commercial airplane.It took approximately 20 seconds for the lights to appear and to move out of sight towards the northwest. The lights were not as bright as the lights that are on a commercial airplane. In addition, there was absolutely no sound. If these lights were coming from a jet or a commercial airplane, it would have to make sound moving at that speed which it did not. Also, the lights were moving below the clouds in the sky as the clouds did not impede the lights as they moved across the sky. The lights continued to move towards the northwest until they were no longer visible leaving no sound.