Strange lights flew in formation over Phoenix, Arizona, and St. Augustine, Florida. (Something similar happened in Phoenix in 1997.) These were widely seen and photographed. Here is a story about the Arizona sightings: Unexplained lights spotted above Valley; what were they? Here is a story on the Florida sightings. (The anchors say the lights may be wedding lights, I guess something like balloons.)
Here is a video of what people were seeing in Arizona, so you can see them for yourself:What do you make of these? (I welcome opinions both serious and humorous.)
UPDATE: We have a confession.