Several times we now observed bright star like lights traveling from sw to nw in straight flight path. following closely one another about 1 mile apart and some with 2-3 miles apart, this is just estimate as they were very high 60 thousand feet possibly. we have seen minimum of 40 during this sighting. they travel in path and then when each vanished, bright flash appeared after- 2s about in place last seen. same with the ones following the first. after about 10 mins, the path changed and they were going from ne to sw.