On: UFOs invading military airspace multiple times a m...

[inflatableDodo]

One thought I had was a plasma ball being generated by focusing high UV from a satellite. That fits some of the supposed behaviour.

[jacobush → inflatableDodo]

While maybe not exactly impossible that would require some insane UV laser power from a satellite.

[inflatableDodo → jacobush]

Might not be space, the water disturbances could be projectors submerging.

[jacobush → inflatableDodo]

Well a nuclear sub might have the power needed. Still insane though. :) Probably you would need several lasers too, intersecting where you want to have the plasma ball.

[inflatableDodo → jacobush]

Thinking about the current efficiency of big lasers, a sub also has the benefit of being able to dump heat fast.

[sterlind → inflatableDodo]

FLIR shows a very low heat signature, though. Plasma is hot (and usually doesn't maneuver.)

[inflatableDodo → sterlind]

The femtosecond mini plasma holograms are cold enough (on average) to touch - Fairy Lights in Femtoseconds: Aerial and Volumetric Graphics Rendered by Focused Femtosecond Laser Combined with Computational Holographic Fields - https://arxiv.org/abs/1506.06668