We have never found any signs of human(1)colonies on other planets but that could change writes Tom Parks
Population(2)existence is low at the moment but experts believe that in 2050, there will be 9 bilion people on the Earth! More people means we will need to(3)produce more enegry and pollution will become a bigger problem for humans in the future. Of cours, human(4)extinction is unlikely but some scientists believe that we should (5)colonise space. They want to(6)create Space (7)growth where we can live in the future. If you're interested, look up the Students for the exploration and (8)development of space at www.seds.org and see what you can do!