my daughter was outside taking the garbage to the curb when she seen a green light flying towards her from making no sound. she ran in to tell me. I ran out and seen the light moving away from us maybe 30 to 60 seconds we heard something behind us very load in the sky that's when two planes flying in formation in the same direction as the light flu over head. At this point the green light was not visible anymore but the planes flu another 2000 feet or so over the airport and made a hard right and flu SW till you could no longer see them