MarkWhittington writes: "In an Oped piece in USA Today touting the idea of manned missions to Mars, Louis Friedman, the executive director emeritus of the Planetary Society, made the curious supposition that Mars is at the far limit of human aspirations for space travel." Link to Original Source
The universe is like a safe to which there is a combination -- but the
combination is locked up in the safe.
-- Peter DeVries