In Glennallen Alaska at 6:45am I witnessed an extremely bright white ball of light in the sky flying south to north as I looked out my window to the east. It was over in a span of 3 seconds. The light faded into nothing. The light shrunk as it moved north and disappeared into nothing. If you held a pencil at arms length the eraser would be about the size of the light when I first seen it at its brightest. It was at least 10x brighter and larger than any star in the sky. It moved way to fast for a satellite and too slow for a meteor. It flew between Glennallen and Mt. St. Elias National Park parallel to the Copper River.