"Mars and Earth share many features. Maybe one day, cities full of people will be another thing they share! But how similar are the planets, really? Which features aid in supporting human life, and which will make colonization more difficult? Find out what kinds of preparations are underway to make living on Mars possible. Full-color photos give readers a look at this future vacation destination. 21st Century sidebars discuss technological advancements,...

Explore the science behind a trip to Mars, from launch to landing on the Red Planet. Set to the tune of "The Farmer in the Dell," this jaunty journey follows five adorable, bobble-headed astronauts as they learn how to bathe in zero gravity, grow veggies in space, and entertain themselves on the six-month trip.