Was walking out at 8:03 pm to my car parked on the street- noticed a huge flying wing passing silently over head. no sound, no lights but the stars blacked out as it flew past and it shimmered liked a "cloaked" ship in sci-fi movies! the shape / outline was visible because of all the bright starlight and when it passed between the star light blocking the stars out. saw it for a sold 15 seconds as it passed over head. ran through the house out the back door to see it but could not relocate it in the sky.... as it passed over the cross section became very thin / narrow and by the time i got to the back yard it was too late to pick it back up. no fuselage all wing. wings were bent down at a slight angle similar to a large bird at the down-stroke of wing flapping.