Life on Mars

Mars is the fourth planet from the sun.NASA said that human beings can live in Mars because  Mars have gasses like in our planet Earth. I want to know if its true.

Life on Mars is, so far, the only Space theme depicting peaceful coexistence between humans and aliens. The astronauts were peaceful explorers to Mars, with a small assortment of vehicles featuring little-to-no weaponry. The native Martians possessed a wider variety of vehicles, some heavily armed, though none were used aggressively against the explorers. Released at a time when NASA was beginning to explore Mars in earnest, Life on Mars is unusual among Space sub-themes for this focus on discovery over combat.