Excellent overview of sightings of orbs that match descriptions and film footage we see today. Flight characteristics also match up. Many of the historical cases referenced in the article are ones I highlighted in my book, McMinnville. This is why I say we need to go back to at least 1947 to begin to get a grasp of what the phenomenon is.
High Strangeness
A podcast that delves deeply into the bizarre nature of the phenomenon. Based on a 2003 article by Vallee and Davis. Very good and worth listening