The object hung suspended in the sky, a huge rectangle, at a diagonal angle. Dark grey in color with dull green lights at the points.I go out running almost every night. On this particular night, I was so hungry, I had a pretty decent sized sandwich a short while before going out. This wasn't the best decision I've ever made, but it lead to the sighting of this massive UFO. During one portion of my run, my stomach cramps became too much. I stopped at a bus stop bench to take some deep breaths. After a few moments of sitting there, the street light beside the bench unexpectedly went out. Jokingly, I saw this as a sign that I should continue walking. I was near the University of Florida campus, walking right in front of the Law School Library, which is usually open 24 hours and always lit. This building too was completely dark. Finding this strange, I continued walking.As I walked forward along the sidewalk, a fairly small plane flew over head, but very close. Closer than any plane I'd seen flying before. Again, I found this strange and as I continued walking I realized that I had seen numerous planes in the sky that night and had thought it weird. Up until this point, I wasn't thinking anything supernatural, just that strange occurrences continued to happen.To my left after the Law Library, is where the University has it's tennis courts. All of the lights for the tennis court were on. As I passed by they turned off at the same time, and at this point I started getting a little freaked out. I began jogging again despite the pain in my stomach. As I continued forward along the road, there was a gap in the trees as I noticed something out of the corner of my eyes that I found strange. It could have been the wings of a plane, but they were diagonal in the sky, something you never see with planes, and it was much too large. Intrigued, I stopped and looked at it straight on. It was a massive rectangle structure that looked as if it were completely thin. It was a dark gray color that made it hard to see it against the dark blue back drop of the sky. Around it's edges it was a darker black. On the points of the object, there were dull glowing green lights (which had added to my initial thought that it could have been airplane wings). This thing was pretty low - lower than any aircraft (but not as low as the previous airplane I'd seen that night), and it was diagonal against the sky. When I stopped to pay attention to it, it seemed as though it were moving toward me but when I made eye contact with the thing, it just stopped and hovered. Silently. I heard all the regular noises around me, but nothing came from this massive object. As I watched it, it moved in such a strange motion, it's hard to describe with words. It didn't seem to have any dimension, but it moved as if it did. It kind of turned in on itself and turned toward another area of the sky and quite easily began to make it's way forward. In relation to the University of Florida campus, it was near the stadium. It flew in the sky with the ease you would see a river flowing. It was so natural. There were some tree coverage so as it moved toward where I wouldn't be able to see it, I sprinted. I ran to another portion of the sidewalk with a clear view of the sky. But when I was finally able to see, the thing was gone. It had flown with a speed that I have never seen. With no noise. And it was an object that made no sense to be up in the sky like that. It could only have been an alien space craft or government weapon. Who knows.