In one of their few joint public appearances, the crew of Apollo 11 spoke on the eve of the 40th anniversary of man's first landing on the moon, but didn't get soggy with nostalgia. They instead spoke about the future and the more distant past. On Monday, the three astronauts will get another chance to make the pitch for a Mars trip, this time to someone with a little more sway: President On Sunda   read more »