Venus is downhill; Mars is uphill (relative to the Sun).
We didn't manage that.
Heck, space is just difficult.
It's amazing our insane governments on this planet can actually manage it.
/johnny
We “know” to get to Mars we leave earth and move “out”. But where would we go if we started at the North Pole and went straight “up”? Or if we started at the South Pole and went straight “down”? And what does it look like?