There is an ingenious rival plan to get to Mars, detailed by the aerospace engineer and Mars Society founder Robert Zubrin in his 1996 book The Case For Mars.
ມີແຜນການ rival ingenious ເພື່ອໃຫ້ໄດ້ຮັບ Mars ແມ່ນ, ລາຍລະອຽດໂດຍວິສະວະກອນອະວະກາດແລະ ສະມາຄົມ Mars ຜູ້ກໍ່ຕັ້ງ Robert Zubrin ໃນລາວ 1996 ເຂົ້າໃນກໍລະນີສໍາລັບ Mars.