Lego released its first space-themed toy set, a 112-piece "Space Rocket," in 1964. In 1978, the company introduced the first sets in its Space line, now referred to as "Classic Space" by collectors.

On Saturday, the day after the Lego set debuted on store shelves, Gemer and his sons, along with other Lunar Outpost representatives, were at Space Center Houston in Texas to celebrate the release ...