Best way to look at negative mass is anti-gravity. For a warp drive you need something like a small black hole in front of you to pull in that direction (gravity). At the same time, you need the opposite of a black hole (anti-gravity) to push from behind. That would warp space and (in theory) allow you to travel faster than light by riding the space wave.A-Wing_Slash wrote:Anti-matter wouldn't have a negative mass, right? Thats what my basic google-fu suggests, but its not something anyone's been able to really test outside of very mico/particular circumstances it seems like.
So while anti-matter is definitely the opposite of normal matter as far as electrical charge, it does not generate anti-gravity since it is still made of fundamental massed particles. So it's useless (except as a power source for the ship, perhaps...)