ALDRIN’S CASTLE
hen Apollo 11 landed on the Moon in 1969, many at NASA felt there was a good chance they’d be landing astronauts on Mars by 1984. But government priorities changed, and the only part of NASA’s grand exploration plan to come to fruition was the Space Shuttle, which taxied astronauts to the International Space Station and no further. Both George H. W. Bush and George W. Bush tried to recapture the spirit, pitching missions to the Red Planet that would have arrived in 2018, but these never became a
