The Case for Space Quotes

“Virtually every element of significant interest to industry is known to exist on the Red Planet. 1 With its twenty-four-hour day/ night cycle and an atmosphere thick enough to shield its surface against solar flares, Mars is the only extraterrestrial planet that will readily allow large-scale greenhouses lit by natural sunlight. Mars can be settled. For our generation and many that will follow, Mars is the New World.”
― Robert Zubrin, Case for Space: How the Revolution in Spaceflight Opens Up a Future of Limitless Possibility

“The moon is a world of rough terrain, with an extent the size of Africa. Such a world cannot be adequately explored on foot, or by ground vehicles. To get around the moon in any serious way, we are going to have to be able to fly. The moon, of course, has no air, so airplanes are out of the question. But by taking advantage of its polar ice to produce hydrogen/ oxygen propellant, we will be able to fly all over the moon using rocket-powered ballistic flight vehicles.”
― Robert Zubrin, Case for Space: How the Revolution in Spaceflight Opens Up a Future of Limitless Possibility

“According to advocates, such as Princeton professor Gerard O'Neill, such commerce could then provide the economic foundation for the development of large colonies, literally cities in space, in high Earth orbits, and this vision has served to motivate many space entrepreneurs, notably Blue Origin founder Jeff Bezos.”
― Robert Zubrin, Case for Space: How the Revolution in Spaceflight Opens Up a Future of Limitless Possibility