new probe u.s is on space
pioneer_probe is not space_probe. nasa_space_mission is space_exploration. space_probe is information_gathering_device. pioneer_probe is space_probe. space_exploration is new_science. mars_odyssey_probe is orbiting_red_planet. probe is exploration. space_probe is not unmanned_space_platform. space_probe is unmanned_space_platform. space_probe is guided_missile.