As I was hoping, somebody was filming the Keepstar shoot in M-OEE8 about which I wrote earlier in the week. So you can see a video of the mass of titans jumping into the system and unleashing their doomsday weapons on the target.
I was somewhere off to the left of the screen on a citadel watching this, though I was able to put my camera on the citadel and watched the whole show from the other side of the structure.
Doomsday beams of many colors
As I understand it, the blue glow comes from the phenomena generators that were fit on the titans specifically to make the whole scene that much more interesting.
The Ancient Gaming Noob 