Whitey on Mars: Is a mission to mars morally defensible given today's real needs?

Humanity has long looked to the heavens for inspiration. Soon we might find ourselves walking on Mars. Indeed, powerful inventor and investor Elon Musk sees it as our species’ mission. Writing in Aeon Magazine, academics Andrew Russell and Lee Vinsel, wonder whether such ambitions are as benevolent as they seem. Can you save the world by abandoning most of the people on it? ​