Does space-time exist only because we as humans say it does? What I mean is, we created time, as well as physics. So, shouldn't we be able to manipulate them?
I'm likely to get shot down if I were to say that we could in fact manipulate physics, therefore alter space time!
Magnetic energy is an infinite amount of power, a 1 inch by 1 inch magnetic cube has more force than the Earth does... Seriously,... Don't laugh it off, you should really think about that for a minute!!
What would happen if you created a low enough frequency through vibration, that it makes any object "float"... Much like objects in space. Throw in some type of alpha magnetic system(alpha accelerator?)and a 33'x33'x33' tetrahedral shaped ship for good looks!...

Basically, the opposite of a gravitron!
The Scottish Universities Physics Alliance - Nuclear and Plasma Physics
Gravity has such a hindering affect, so much that it acts like a counteractive energy... You need tremendous amounts of repelling energy to escape Earth's gravity. If we could use magnets to repel/attract ships to and from the "dark energy".... Put into simple terms... Dark energy is a form of Magnetic energy. Considering science has proved that you can bend light with magnetics, you can in turn accelerate it with the same force!