Bright ball of light emanating cloudiness around it, moving fast through the sky

I couldn’t catch a picture but tonight driving home to california we stopped at rest stop in arizona and seen this bright light i thought it was a plane but the sky was completely clear we could see all the stars and then this ball of light was there it almost looked like the cloudiness that was emanating was in the shape of what butterfly wings would look like i guess, it was more round on the sides but any idea what this could be?? it was only visible for about 15 seconds until it faded into the sky heading east very quickly.