Life in Space - Set Seven

Is our planet Earth the only place in the universe where there is life? Or could there be life on other planets? If so, where will we find it? On other planets? Mars? What do you need for life? How did life start? Did life on Earth start in space? Find out how weird life on Earth can be.Then read a great story about searching for life on alien planets: The Search for Life. Sometimes things just aren''t as simple as they seem!