Going to the Mars
As is known to us all,everything including the earth has its limited life.Human beings can't live on the earth forever.When the earth doesn't exist,where will human beings live?This question has been considered by many scientists of different countries.Scientists have worked at this subject for a long time.They are trying to find other planets for man to live on.Mars is one of them.Man can't live without air,water and food.So the three factors are the basic conditions that human beings can live.I believe,with every effort of our scientists,we can live on another planet some day.