...Just trying to find what ships scan for in terms of particles etc
Neutrinos are always in the top ten in Star Trek

You also might use tachions, cronatons, antiprotons, leptons, etc..
They also scan for lifesigns, energy readings, gravitational fields/distortions, subspace distortions, and every conceivable (and unconceivable) astronomical phenomena.
Oh, and the bridge you're doing looks great. I love how you're making the captain's ready room
and the briefing/conference room as well, with walkfx bridges like that help you immerse more in the game.