The Apollo 11 mission, launched on July 16, 1969, and which for the first time placed Neil Armstrong and Buzz Aldrin on the lunar surface, is usually remembered as an American achievement. However, Spain played an essential role in the achievement of that historic milestone, thanks to its infrastructures and professionals who integrated NASA's global tracking and communication network.
In the midst of a Cold War dominated by the rivalry between the United States and the Soviet Union, NASA's Manned Flight Network, the tracking system that allowed coordinating each phase of the mission, included three stations strategically separated by approximately 120 degrees in longitude.
This allowed that, at any point in the orbit, at least one 26-meter diameter antenna would see the spacecraft. Stations already existed in California and Australia; the third had to be installed in southern Europe or northern Africa. The most viable option was Spain.
On the day that the Artemis II Mission prepares to take astronauts Christina Koch, Victor Glover, Jeremy Hansen and Reed Wiseman back to the Moon, we remember the essential role that Spain played more than half a century ago in the historic arrival of man to our satellite in 1969.
Spain, connected with the Moon
Although the mission was led by NASA, part of its success depended on tracking stations spread around the world, among which three Spanish ones stood out: Fresnedillas de la Oliva and Robledo de Chavela (both in the province of Madrid) and Maspalomas (Gran Canaria).
These facilities were part of the Manned Flight Network of the American space agency, responsible for maintaining communication between the Apollo 11 spacecraft and the control center in Houston during the trip to the Moon and its return.
From these stations, Spanish technicians, many trained by NASA itself, monitored the signals sent by the spacecraft, including communications with the astronauts and the transmission of vital data. It was through these antennas that historical signals such as "Here Tranquility Base. The Eagle has landed" reached the control center in the United States and the rest of the world.
Thus, while the whole world celebrated the historic moon landing on July 20, 1969, in Spain's case in the early hours of a hot summer night, two Spanish engineers had a privilege few know about: to hear before anyone else, even before Houston's own control center, Neil Armstrong's famous words after stepping on the Moon: "One small step for man, one giant leap for mankind".
Carlos González, in charge of the receivers and transmitters in Fresnedillas, and José Manuel Grandela, responsible for communications between Robledo and Fresnedillas, recalled in a 2022 interview with National Geographic magazine those moments of emotion: "We had the privilege of being the first to hear it. Before Houston itself".
The essential support of Telefónica and the Spanish engineers
Spain not only provided infrastructure, but also telecommunications experts who worked hand in hand with NASA. The National Telephone Company of Spain was key in this effort, installing and operating communication stations that allowed the space teams and Houston to stay connected during critical moments of the mission.
In those critical moments, when Armstrong uttered the famous phrase, the station of Fresnedillas was the only one with direct visibility of the lunar module. The communication, what Houston sent to the spacecraft and what the spacecraft transmitted back, passed entirely through the Spanish facilities before being re-sent to the United States.
Despite the fact that Spain was not a superpower in space technology, nor did a strong national space agency even exist yet, Spanish participation in Apollo 11 was indispensable.
Grandela recalls it in the aforementioned interview with pride: "The whole world celebrated the milestone, but we were focused on making sure it worked. We knew that perfect communication depended on us".
In a country living under dictatorship and with limited resources for space research, the Spanish technical work was not an anecdote, it was an essential link in humanity's most ambitious mission until that moment.
Its collaboration in Apollo 11 was not circumstantial nor limited to a fleeting transmission, it became the seed of modern Spanish space activity. The experience acquired in Fresnedillas, Robledo, and Maspalomas contributed to consolidating Spain's presence in international space exploration projects and placed Spanish scientists and engineers at the forefront of aerospace technology.
Today, half a century later, those stations and the memory of those who worked in them continue to be reminders that man's arrival on the Moon was a collective achievement of humanity, in which Spain occupied a leading and essential place.