If the problem is human population growth and lack of habitat in the future, one approach for solving this problem. Space exploration to find new sources outside world.
If the problem of human population increase rate until may in future sources of housing shortage, one of the guidelines for solving this problem is space exploration to find new sources of the outside world.
If you will say that there was a problem, increasing human population until it may be lack of habitat in the future, one way to solve this problem is for the space exploration to find out the source of the world.