Yeah, I just researched a bit, and it seems that speed can cancel, or maybe a better word is equalize, pull from a mass, like say the Sun - like this:
But then I have another question, how about time being relative. That if you live on a mountain, times is slower than if you live at sea level. How can that be possible, and the same thing about speed, that the faster you travel, the slower the time passes by. Wouldn't there be a speed, from which you move back in time?