Stargazing.. i turned around and saw a very bright star. as big as venus or bigger, but in the north. i thought it was a star but before i could analyze the situation, it started to dim over the course of 5 seconds and then disappeared. afterwards, a flash of light covered half of the sky in the west. i felt very unafraid. it stayed stationary, but after it disappeared the flash was like a camera flash and it covered half of the night sky to the left (west)