I was walking out to my car at 11:55pm when I saw a triangle formation of lights with a red light blinking in the center heading my direction. The craft was flying from the north to the south.It made a very quiet rumble, almost the way a jet would make at a very high altitude only this object was extremely low. Followed by another craft exactly like it 1 minute later. I tried to take a picture with my phone's camera but it is quite a worthless phone. I have heard many types of jets, and this was very quiet. It was probably traveling at least 20 to 30 miles an hour, but that is just a guess. I could barely make out the shape and it was definitely triangular. I thought it might be a stealth craft of military type since there were two in a row. The first flew over my house followed by the second about a minute later. I have a tactical flashlight (Fenix PD30) that I carry at night and attempted to signal it, just goofing around, but it didn't do anything but continue on it's southern trajectory ( i checked it with a compass later). The two craft then flew out of my field of view as they continued south. These may very well have been military aircraft but I have never heard a jet that big fly so quietly.