Why do rockets travel horizontally in space to other planets instead of travelling vertically? Is there nothing above and below the planets?

Question

Why do rockets travel horizontally in space to other planets instead of travelling vertically? Is there nothing above and below the planets?

In: Physics

Answer 1

I don’t understand your question at all. In the vastness of space, there is no “horizontal” and no “vertical,” except in direct relation to some other object/entity. Those a spaceship traveling to another planet would never be traveling horizontally or vertically.