Hence the plan to have ten or so launches to refuel the top stage while it's still in orbit, a place that notably _is_ halfway to the moon's surface + the retur

Hence the plan to have ten or so launches to refuel the top stage while it's still in orbit, a place that notably _is_ halfway to the moon's surface + the return trip to the earth. https://upload.wikimedia.org/wikipedia/commons/9/93/Solar_system_delta_v_map.svg https://upload.wikimedia.org/wikipedia/commons/9/93/Solar_sy...