Floating balloons are also a common sight and they account for the vast majority of these UFO videos. It's really not that great of a mystery that tens of thousands of balloons are let go of on a daily basis and just floating around. When looking at a fixed object while in a fast moving object you end up with some interesting illusions. UFOs are seen regularly because a lot of things out there are unidentifiable, but that doesn't mean they are aliens. Shit loads of balloons though. 🎈