Silent black triangular craft flew over my head and disappeared into the night sky.I went outside half an hour ago to throw some garbage in the dumpster at our apartment complex. On the way, I stopped to look up at the stars when the stars were suddenly blocked from view by something black flying over my head in the sky. There were no lights on it whatsoever, and it flew silently - absolutely NO sound. My mind struggled to figure out what I was seeing. I was barely able to make out the triangular shape of it, and I wondered at first if it was a formation of geese. This craft flew SO smoothly and swiftly, gliding through the night air. It was right overhead and couldn't have been anymore than 50 ft. above the large fruitless mulberry trees nearby. I'm not good with measuring the sizes of things in my head, but this craft had to have been somewhere between 50 and 100 ft. across. I am still stunned by how black it was; I'm surprised I was able to see it at all. I don't know what to make of this. I am still in awe.