Mars has a daytime temperature of 73 ºF, but a nighttime temperature of -100 ºF. Nearly 95% of the martian atmosphere is carbon dioxide, and the planet is constantly exposed to intense radiation. So why are humans so eager to go to Mars, and how would we ever make it habitable? In short, establishing a human settlement on Mars and making humans a multi-planetary species would be an astronomical (pun intended) step for humankind, and there are innovators making this dream a reality. The Spirit of Human Curiosity First of all, humans want (and need) to go to Mars for the spirit of adventure and exploration. Throughout all of history,…