The only qualified person that can really explain what we see in this video from 1991 is of course Bob Lazar. Why do UFO move so goofy? What is this glow?
Bob gives us the answers in easy to understand terms.
Just for clarification: This VHS video was shot from Mailbox Road on public land. This is an unedited original 720x40p VHS recording and not a night vision recording.
As background I have used a photo showing the mountain range. The mountains have been carefully placed in the right position with an accuracy of 5-10 meters. The camera is looking South West towards a mountain range called White Sides.
Some "expert debunkers" claim that this is a test of a laser induced plasma ball. When you look at the position of the UFO when it dives in front of the mountain.
The laser would have been standing outside of Area 51 on public land and quite near the location of the person who filmed it. So the plasma balls theory can be thrown in the bin, just like the planet theory that this is Mars, Venus, Jupiter, our Moon or the landing light of an airplane. Sorry debunkers but you either have to think of a new theory or you can accept that you cannot explain what it is and therefore an unknown flying object.