Unexplained trio of bright lights, night of July 6, 2017.Unidentifiable bright lights as seen in Alto, NM, on Thursday, July 6, 2017, at approximately 21:00 to 22:00 hours.On a clear night, Thursday, July 6th, 2017, there was a bright light that was then joined by two other bright lights, on either side of the original. This taking place for approximately 1 to 2 minutes. Then disappearing.We were visiting friends at their home in Alto, NM. They had shared with us that they had seen these lights on the previous evening.There was no sound accompanied by the lights. Their shape was more triangular than circular. Beginning lighter and then becoming brighter before distinguishing completely.