Three friends and I were walking at about 9:50. Not long after that, the area around us was lit up by a green ring. This green ring/light only lasted only 2 seconds. After the green light, I looked up and saw a huge green ring,.. Only higher up and smaller. .when we saw the there was loud pop, almost like lightning. .I didn't have any more experiences, but the same friend friend who saw the small ring heard more pops and saw some strange creature as she was walking home.