Some of these vids are quite interesting. Specifically, at about 1min 45secs, there are some kind of firework-type streaks going up into the air over Melbourne, Australia. If you look closely you can see that there is some kind of pulse-explosion thing going on. Like BLAM...goes a bit BLAM...goes a bit more and so on.
No idea if it is anything other than fireworks but it is interesting that it resembles ideas for a nuclear-explosion powered spacecraft. There has definitely been serious work done in propulsion of this kind but I only know of it, no details.
No idea if it is anything other than fireworks but it is interesting that it resembles ideas for a nuclear-explosion powered spacecraft. There has definitely been serious work done in propulsion of this kind but I only know of it, no details.