The idea of humans traveling to the moon and Mars to live has captured our imagination. But beyond the idea of going where no one has gone before, these places are hostile and extreme environments for the human body. Planning for long space travel and life on other worlds will require more than solving some challenging engineering problems. It will require humans to think more about how we can survive in these conditions. Dr. Biology spends some time with Mallika Sarma an anthropologist who is exploring how humans cope in extreme environments and gives us an idea of what it will take for us to make other worlds our home.