I'm in York County, PA and we were at a Barn Party. We were just getting ready to set off floating lanterns when I looked up and saw the light in the south/southeast sky. It looked like a huge comet, with a very globular tail. There was a bright light at the bottom, surrounded by a glowing cloud. Then, the light at the bottom suddenly seemed to go up disappear, leaving only the cloud, which slowly dissolved. At least 20 of the 50 or so people saw it. It was the strangest thing I have ever seen. It was probably sometime around 8:00 PM, but I am not sure the exact time. We spotted it to the right of Venus (Is the bright object in the southeast sky Venus?)