I am a graphic and typeface designer and I think we should search for something memorable as well as simple. It is a flag. So it should be just colors or one symbol maximum. It is not a poster or banner.
So I designed this. And some note about the flag, Hexagon is a: - very powerful shape. Defines unity. - recognizable math shape, too. Defines reason and thinking. - structure that has been seen in chemistry as well. Defines science. - form in mechanics and physics as parts of the devices. Defines usability. - pointer to humans' sixth sense, also! - very sweet thing, too! You can see it in honeycomb, too.
So there you have it. Simple and meaningful. I hope all Asgardians like this! :)