I was on my deck looking at the stars, and a moving light caught my eye. i said to my housemate, ron, "oh look, a satellite!. wow, that thing is booking." two or three seconds later i asked "is it going..." and ron questioned "zig zagging?" i confirmed his thought and then asked, "is it [the light] getting smaller?" "yeah, it is..." we squinted at the night sky and an extremely bright light flashed where the original small light blinked out. it was in an oval shape, of the brightest whitest light i had ever seen in its center with slightly fuzzy edges. it was so bright it startled me and i yelped. and ron exclaimed "oh sh*t!" i think i then yelled "did you see that!?" we continued to look where the light exploded, and it had immediately faded away. in terms of cinematic effect for comparison, it looked like the tail end of the enterprise when moving to warp. immediately after, i had a very ominous feeling in the pit of my stomach. the whole encounter lasted maybe 45 seconds. it was extremely intense, especially seeing it with another witness. i couldn't say if it was mechanical, incendiary, governmental or supernatural, but it was of unlike anything i had ever witnessed.