UFO Sighting in Lander, Wyoming on March 22nd 2015 – Two bright, pulsating lights on air vehicle, traveling slowly to the NW, night sighting

Since about the age of 10, I've been a UFO enthusiast. I've read books and, later years, followed sightings on the net. This time, it was my turn. It was just before 10 PM and my wife was in bed. Our large bedroom window faces due north and this is what you see when in bed. I had just entered the room and she very calmly announced, "Look, a UFO." I scrambled to the window and there it was: Two very bright, slowly flashing white-blue lights that appeared to be on the rear of an air vehicle. It was moving slowly NNW and within 15 seconds it was over the ridgeline to the north. The direction of travel suggested that it had passed very close by our isolated home. For me, it was the typical response, "What did I just see?" This is a remote area 10 miles south of Lander, WY. There is almost no one living near our home in the foothills and to the west is a major mountain range. The night was very dark - no moon. All I saw was these two bright, slowly pulsating lights as the craft moved out of sight, over the ridgeline. Nothing more to add, I know what we saw. It definitely did not look like any aircraft that we are familiar with. Just a short look, then it was gone. Not too much later, at work, I ran into a neighbor and told her my tale. She replied with a story from her childhood, where she and friends saw silver, metallic craft in broad daylight in the same area. They got scared and ran home; nothing much more said about that sighting. They are out there and now after so many years, I saw one.