Most probably some secret advanced biological counter weapon against the other thing.

Maybe we are just looking at bubbles left there by interestellar ship engines.

There is actually a new capability in good notebooks that behaves like that, kind of the same we have with cellphones, "always on" for notebooks, maybe googling a bit will get you how to turn it off

It does not matter, per billion invested in fossils you produce millions of kwh during decades.

Per billion invested in Renovables you can produce at most 10% of the kwh and for just a few years even months, till it's necessary costly maintenance

You could just get the thing going running an external file/script. And stop it with an if condition. It's a classic structure from very noob admins.

Too simplistic reasoning here,if aliens are actually here, motivation and drive could also be completely alien to us. Toying with hardware near some primitive military infrastructure could be just about anything, tests for an invasion or maybe they are just collecting samples from the jets exhaust or anything

So, many fears about surveillance infrastructure to be deployed for use cases like this one are already too late to the party. That's already done, the framework over all the apps are being deployed, like looking for faces to tell who's who

I think that the direct loss of lives due to the action and a permanent damage to critical to very important infrastructure is the current guideline to declare a hostile act from a nation state as an act of war

Same feeling here 4000 miles away from US, that's probably just an old almost forgotten reflex from the last ice age