UFO's over Bozeman, MT? 12-31-2013My housemate steps outside every night to view the night sky. On this particular evening, he looked outside the front door and heard some neighbors talking in their driveway. He went outside to make sure things were okay when he saw the lights just above the Bridger horizon, traveling east. He ran inside, told me to come outside, and ran back out. I joined him in the driveway and observed three lights traveling at the same speed, in the same direction, at the same "altitude", and disappeared into the clouds. I only saw three of the lights, he saw a total of 8. I confirmed with a friend who is a pilot that small planes would have had flashing lights. There was no sound, no flashing lights, just a steady orange glow moving across the sky, just above the mountain horizon. I am wondering if they were the celebratory lanterns. That would be the last logical explanation before considering an E.T. source.