I have seen this several times. always in the wee hours of the morning before sunrise. outside where i live. i was taking out trash. i like to look up at the stars there are not a lot of secondary lights so they are very bright where i am. at first i thought my eyes were playing tricks on me. i didn't know what it was. it is a huge black triangle that blotted out the stars and one time the moon was shining behind it. it makes no sound sometimes it's moving sometimes it's hovering. well my first thought was what is it. then i thought there's no military bases close to me so what the heck is it. didn't think a lot about it till i saw it several times not always in the same spot. now i would just like to know what it is. i think twice it proceeded on a northwest track. sometimes i would just go back in my house.