Plants on Mars

John, Bhut and Jock take a look at Nasa's plans to grow plants on the moon. John: I don't think it will be like growing food or oxygen all in one plant. Bhut: There are advantages and disadvantages of growing plants on mars compared to the moon. But i'm very sceptical about cen - nasa always sells the moon as a test bent for mars. And if we don't have all the biological questions answered, its dust not go to work.