Oval orange glowing object hovers over Three Rivers Park, shoots laser-beam to ground. Not a balloon!I went to the sliding glass doors to tell my dog to stop barking. It was dark out, and I saw an orange glowing object up in the air, about a hand width above the distant tree line, over Three Rivers Park. It was glowing as if from within, and I could amke out a slighlty hazy flashing red light on my side of the view, and a white or pale greenish-blue one just on the far side of the object. There was a stopped vehicle with headlights on, that had pulled off the road, facing this object. I figured this driver saw this, too. I was cooking, so I had to tend to the stove, and then returned to see the thing still there. It was perfectly silent, I got my dog to stop barking for a minute, I opened the door, and heard no sound at all. He started barking again, and as I watched this object, it just disappeared! My dog stopped barking when it disappeared. My boyfriend had been in his office, and I had said nothing to him about this. I went to the TV to see if there was something on the news, meanwhile I heard my boyfriend say, "What's that thing out there?" Then he said, "This thing out there was up in the sky and it just shot a white laser-like beam of light down to the ground, then disappeared!" He described the same object that I had seen. I went to the door, and saw thatt he car was gone, or at least his headlights were off. I had checked the news after that, and there was nothing about that. I have not gone to the park to see if it left any signs in the snow, and don't want to, really, thugh someone should, I guess. After the object had disappeared, I noticed the normal air traffic had returned. Planes usually appear as tiny pinpricks of light, as do stars, but this was as big as a thumbnail held out full stretch.