looking up I noticed a lighted sphere-like object that flashed a blinding white light only, every 3 seconds silently streaming across the sky, after a long hot day I wanted to cool off outside my home, the stars were out bright. I was standing outside my back door looking up to the east direction the lit up object was cruising south to north. I noticed it because the stars were so bright and none were moving only this one and fast. I thought the object was a satellite but then it flashed this bright light that looked amazingly bright for any plane I have ever seen. I watched this thing for 10 seconds then it just disappeared from my view and usually I notice you can track a plane all the way across the sky,there was something about it that was so different,from your ordinary object that you would see in the sky. I am 37 and sky watch alot since I live in a very small town not much lights here on reservation land. I was speechless as I ran in the house to tell my husband and sister, shaky andin disbelief of what just transpired outside my home in the air.