i noticed this black three dimensional object floating across the sky. there was zero clouds in the sky, and it was right before dusk. the object was very clear to see, about 100% visibility. it looked triangl-er in shape at first, but with flat edges connecting it, not points like a regular triangle. it seemed to be rotating at a constant pace. either that, or it was shape shifting. it was moving pretty slow, felt like 5mph. it had to be about 300-500 feet in the air, could be more. the object seemed to resemble the size of a large storage truck, could’ve been bigger. the object made zero sound, and had no lights on it. it was definitely too big to be a drone, and kept it’s pace until i was unable to see it anymore. from where i first saw it, to where i couldn’t see it at all, would make me believe it was not being controlled by a remote from the ground. i was only able to capture this on my mobile phone device (13mp camera), which isn’t capable of shooting great quality video from that far away. i was fortunate to even capture what i captured.