Of course, some orbs seem to lack any explanation at all—a silver pod the size of a coffin darting across our solar system, crashing into the ocean; a large iridescent planet like the interior of an abalone shell orbiting three stars; a woman in a cave wearing animal skins and crying over the body of a little girl. We watch this cave woman sing in unknown languages, place flower petals over the girl’s eyes. We watch her walk across a vast plain as she sheds her clothing and turns into light.