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. Even the design of the book defies gravity, as text and art float free on the page, encouraging readers to turn the book sideways and upside-down.