Bright white light that flashed and filled the entire sky with light followed by a triangular shaped craft with 5 lights flying in sky

I was stargazing at camp watching the meteor shower when a bright white light appeared in the sky above me. The light expanded and got brighter rapidly til it looked like it exploded with a flash of light that illuminated the entire sky. Shortly after a triangular shaped craft with 5 white lights, 1 centered on the front with 2 on each side equally spaced appeared and I observed it flying across the sky for approximately 5 minutes from East to west towards the coast. There was no sound from either the flash of light nor the craft.