Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
Yes my conclusion is that this must be a dust related artefact. I don't see other explanations. Remains the question what kind of dust we need to get this.
In woo-woo circles, these artifacts are known as "orbs" and are attributed by said woo-woos to the paranormal. As mentioned many times above, the culprits are dust motes illuminated by the flash.