It doesn’t take a rocket scientist to figure out that rockets and spaceships use a lot of fuel and that fuel these days is chemicals which take up a huge amount of space on a spaceship, especially if it’s headed to Mars with heavy equipment and construction supplies for building a base. Yet NASA, SpaceX and the other private space companies continue to rely on them for current and future missions, with the intent of mining more fuel when they reach their destination to either continue the voyage or make it back home. Is this really the only solution – at least until they get a warp drive?