At the International Space Development Conference (ISDC) in May in Washington DC, Dr. Robert Zubrin, president of The Mars Society, gave a well-received speech about his favorite topic and invited all attendees to that group’s eighth conference in Boulder Colorado. He promised that it would be “The Woodstock of Mars.” Woodstock carries powerful imagery to most who hear the word. To some, it was the pinnacle of the free-thinking ’60s: communal living in a farmer’s field with days of music and other forms of entertainment. To others, Woodstock was a mess, filled with counterculture people and ideas reveling in their...