Because Mars occupies the mild region of the Solar System and is near a planet where life took hold, we often ask, Might life have arisen on Mars also? As we ex... » 

Because Mars occupies the mild region of the Solar System and is near a planet where life took hold, we often ask, Might life have arisen on Mars also? As we explore our Mars we learn more about our Solar System and our planetary neighbor. If even one microbe is found on Mars, it will confirm that there is life elsewhere. «