Triangle with three lights flew over, very low and completely silently.Family was outside after my cousin's graduation party. It was dark but we hadn't turned any lights on to avoid the June-bugs. We were looking up because my uncle had an application on his phone that showed the various constellations. Then, from one side of the sky I thought I saw movement, but it was hard to focus on what was going on (whatever it was blended perfectly with the light-polluted sky). I pointed at it and told everyone to look. It flew directly over us. No sound. I wouldn't have been able to see it had it not been for the lights that appeared on the corners. What was strange is that the lights appeared to be facing inward towards the center of the aircraft itself. As it flew over I was become annoyed by the fact that nobody was saying anything, so I asked, "Is anybody seeing this!?" Two of my cousins replied exuberantly, with a hint of horror (which I understand completely, because this was really a strangely terrifying experience). It disappeared a few seconds later into the light pollution coming up off the horizon.The people who saw it were myself (a 16 year old high school student), my cousin (an 18 year old who just graduated), my second-cousin (also a high school student), and another second-cousin (also a high school student). Also present were our parents, and two other cousins, all of which did not see it themselves.P.S. I am not including my name or number in this form, simply because I don't know anything about this website (no offense). If you contact me via email I will give my name and number because I will GLADLY discuss further details. ALSO, if necessary, I might be able to get the other witnesses to talk to you guys.Honestly, if they hadn't been there and seen it themselves, I definitely would have thought I was hallucinating. It was so low and clearly visible.((NUFORC Note: Witness elects to remain totally anonymous; provides little contact information. PD))