Spain lunar sample displays Spain lunar sample displays The Spain lunar sample displays are two commemorative plaques consisting of tiny fragments of moon specimens brought back with the Apollo 11 and Apollo 17 lunar missions. These plaques were given to the people of Spain by United States President Richard Nixon as goodwill gifts. The Spain Apollo 11 lunar sample display commemorative plaque consists of four rice-size specimens of lunar rock that were collected by Apollo 11 astronauts Neil Armstrong and Buzz Aldrin in 1969 and a small flag. The 4 specimens weigh about 0.05 grams in total. They are encased in a clear plastic
Buzz Aldrin propellants, with an expected five and a half month journey from the Earth to Mars, and a return trip to Earth of about the same duration on a twin-cycler. Aldrin continues to research this concept with engineers from Purdue University. In December 2003, Aldrin published an opinion piece in "The New York Times" criticizing NASA's objectives. In it, he voiced concern about NASA's development of a spacecraft "limited to transporting four astronauts at a time with little or no cargo carrying capability" and declared the goal of sending astronauts back to the Moon was "more like reaching for past glory