Im creating an animation that includes an asteroid field. I want some of the asteroids to move around and if they come close to each other, to collide and go off in what ever direction they realistically would. I’ve mostly figured that out, but as the animation goes on, the objects slow down, in both their rotation and velocity. This doesnt work for what im trying to do because, its set in space, so there should be no friction. Is there a setting that could be causing this, what looks like, drag force on the objects?
If you’re using rigid bodies, then you can set translation and rotational damping to 0 in the rigid body dynamics menu. With particles, would be the drag and damping in the particles physics menu. The gravity vector should also be set to 0, but it seems you have this figured out! 
Yep that was exactly what I needed! I cant believe I didnt notice that before. Thanks a bunch! And yeah I just unchecked gravity in the scene options