Bright Still Light, After 15-20 Seconds sped away with greenish light. too low and too fast to be a planeEarly August 2008 a friend and I got out of a night-time movie in Dublin, CA. Driving North on CA HWY 680 from Dublin to Walnut Creek in 2 separate cars. I was in the front and they were following in their car. I notice a Bright glowing light, low in altitude, motionless, and I leaned forward to look up and see it better. As I did so it sped away traveling north, as it flew it seemed to stay in low altitude and extremely high speed, and disappeared at the horizon, clearly too fast and too low to be a plane. I said to myself, “No way.” I quickly called my friend, who was following me, on my cell phone and was going to ask if she had seen it too. Before I even had the chance to say anything she said “Did you see that?” I replied “I was just going to ask you the same thing. How weird was that?” She said “Do you think it’s a UFO?” I said “I didn’t really think it was possible to ever believe in one, or see one. I think so.” When we got to our destination and talked about it a bit more, she had mentioned seeing it floating in the air for about 15-20 seconds. When it was motionless in the air she described it as a white-ish light and as it flew away colored green, and left a greenish trail, and clearly too fast and too low to be a plane.((NUFORC Note: Witness indicates that date of incident is approximate. PD))((NUFORC Note: Witness elects to remain totally anonymous; provides no contact information. PD))