Let's talk aliens.

[Treewyrm]

On practice the answer is plain "No".

Inner workings of the Nomads are beyond current technological research level. There are reverse-engineered Nomad weapons derived from Nomads' own prototype research models (as seen in SP) and few experiments around their energy resources, i.e. power cells, but that's about it. Live specimen were not captured, I'm afraid it were only dead tissues from ship explosions. Besides, "mindshare" is just a hypothesis proposed by some scientists, the actual mechanics are unknown as far as the science inRP goes. Also it's not EM waves. It is important to understand that what you've read in lore isn't what scientists know about them, it's given to you as a player, not to your characters, try not to mix up inRP knowledge with what you can find out or given to as a player. That being said scientists also don't know how their society works, they may theorize, from hive structure to pure collectivism. Suffice to say Nomads themselves aren't telling that, and only a handful few humans allied to them would have a glimpse at what they really are.