Particles

Ideas:

Two subatomic particles that are fairly stable alone. But explode in a massive unstable burst of energy upon collision. This is used to create a a weapon fires the particles out on a collision course some distance away to bypass most defenses and create a spontaneous explosion. This would likely avoid most shields and hull but do nothing until the projectiles reach the targeted area, making it more easily dodged. This also makes me want stealth based defenses to be fully, if not more, effective against the weapon, as precision is vital to effective usage. Certain shields should also have the potential to harmlessly eat the particle(s). Exactly what shield depends on how each of the technologies pan out.

Projects:

Ion Propulsion

Lightning Field (Emits Ionized particles for aoe damage)

Distortion Field (Stealth)

Hyperspace based FTL

Solar Sails Propulsion

Fields:

Nuclear

Beams

Fusion

Electromagnetics?

Field Theory?