Bright white light slowly and briefly travels part of the night sky.I went outside last night at 3am as it was humid and i couldn't sleep. I sat on the front steps to admire the stars and enjoy the cooler air. As I've seen several UFOs over my house, some recently and reported herein, I thought maybe I'd see another one. Sure enough, a bright light, about the size of Venus at its brightest, caught my eye to the southeast. It was very slowly traveling to the northeast, slower than a regular airplane. Altitude I would guess to be about 10 to 15 thousand feet. As I closely observed the light and its movement, it suddenly dimmed, and went out. I had the distinct feeling that it knew it was being watched and didn't want that. For several more minutes, I kept my eye on that quadrant of the sky but did not see it reappear.No sound from it, or any flashing lights. It was just a bright, bluish white round light. I believe that if someone wants to spend the time looking at night, eventually you will see them. Some can be dramatic, unlike this one.