I was working for a major oil company driving to mississippi to do some work between lafayette louisiana and baton rouge louisiana, it appeared in front of me out of my right side of the windshield. it was huge. it had bright red and white lights around the edge and was dull gray in the interior. i observed it for about 20 minutes and it disappeared suddenly. never told anyone about this until now. this was in the summer of 1972. never saw it again.