The wartime silver spheres in the clippings were never resolved. They weren't German tech or anyone else's and we know this because we still don't have the technology 80 years later. Spheres are bad designs in an atmosphere if energy efficiency is a factor. They were materially different to the "Foo Fighters" as they were shiny and metallic whereas the "Foo Fighters" were insubstantial and glowed red. Neither phenomena have been KOd with a good explanation.
The 1945 one took place during a waning crescent moon phase. It sounds like something of great size to be visible. The USS New York opened fire on the planet Venus in 1945 thinking it was a Japanese Fu-Go balloon weapon. Mistakes and misidentifications were as easy to make as they are today. The thing is Venus would barely be visible to the naked eye at noon in the middle of summer. A weather balloon could potentially explain this one and the cylindrical object would be its payload. However, it wouldn't explain why the object disappeared or why the pilot couldn't locate it.
Very interesting how things that appear new today have been reported years ago if you do a little digging.
This is why laugh at all the people who insist these things are only interested in nuclear weapons.
There is a theory that these silver spheres and orbs are part of an alien observations and defense system protecting the world from outside threats.
Or protecting the universe from us.
Could be but I have had encounters up close with orbs at night . I have also had a few with these silver metallic sphere during day while walking/hiking. They seem to just appear and after a short while just vanish or disappear back in the woods. I do not feel threaten by them.
I don't feel threatened by them either, I just think it's more likely that they're protecting the universe from a dangerous, primitive and warlike species, namely us.
I hope they're here to teach us.