Antonio Ribera

Early Life and Childhood Encounter

Antonio Ribera was born on January 15, 1920, in Barcelona, Catalonia, Spain. At age 10, in 1930, he experienced a close encounter that would shape his lifelong dedication to UFO research: a humanoid figure bathed in green light appeared in his bedroom. Though he initially kept this experience private, it became the foundational catalyst for his later investigations into extraterrestrial phenomena.

Career and Contributions to Spanish Ufology

Ribera's professional life was multifaceted. Beyond UFO research, he worked as an accomplished translator, personally translating over 300 books into Spanish, fluent in six languages. This linguistic skill made him uniquely positioned to bridge international UFO research communities and gather reports from around the world.

In 1953, he founded the Center for Recovery and Underwater Research (CRIS), initially focusing on marine and scientific exploration. However, his passion for ufology drove him to help establish the Centro de Estudios Interplanetarios (CEI) in Barcelona in 1958—a pivotal moment in the institutionalization of Spanish UFO research. Through CEI and his extensive writings, Ribera became the intellectual anchor of Spanish ufology during a period when serious scientific investigation of UFOs remained marginal in most European countries.

He published extensively in Spanish ufological journals and newspapers from 1959 until his death in 2001, maintaining an active voice for nearly five decades. His major published work, La Gran Enigma de los Platillos Volantes (The Great Enigma of Flying Saucers), appeared in 1966 and became a foundational text in Spanish-language UFO literature. Later, his collected correspondence and research on the Ummo case was published as UMMO And The Extraterrestrial Papers.

The Ummo Investigation

Ribera is most famous for his serious, sustained investigation of the Ummo case (1965–1975+)—one of ufology's most disputed and intriguing phenomena. In the mid-1960s, Spanish UFO researchers began receiving letters and documents allegedly from inhabitants of a planet called Ummo, located 14.6 light-years from Earth in the Wolf 424 system. The case involved sightings, physical evidence claims, technical drawings, and an elaborate narrative of extraterrestrial contact.

While skeptics and later researchers labeled Ummo a hoax or sociological experiment, Ribera approached it with methodical seriousness. He compiled and analyzed the correspondence, investigated witness testimonies, and maintained that the phenomenon warranted genuine scientific inquiry rather than dismissal. His advocacy elevated Ummo from obscure Spanish fringe phenomenon to international UFO folklore, making it a permanent fixture in UFO literature. Though mainstream science never validated the Ummo claims, Ribera's meticulous documentation preserved the case as a significant curiosity in UFO history.

Academic and Cultural Legacy

Beyond ufology, Ribera was a Catalan cultural activist and served as a diplomat—notably as consul of Romania in Barcelona. This dual identity as both scientist-investigator and cultural figure gave him credibility in Spanish intellectual circles, even as his UFO research remained unconventional.

Ribera was an unequivocal believer in the Extraterrestrial Hypothesis (ETH)—the idea that UFO phenomena represent genuine visits by non-human intelligent civilizations. He published extensively on this conviction, contributing to the intellectual framework of post-war European ufology.

Death and Influence

Antonio Ribera died on September 24, 2001, in Sant Feliu de Codines, Barcelona, at age 81. His death marked the end of an era in Spanish ufology. Though his conclusions about Ummo and extraterrestrial contact remain controversial and largely unvalidated, his role as a rigorous, multilingual researcher who brought international credibility to Spanish UFO studies remains respected by historians of the field. The letters and documents he collected—now archived—continue to fascinate researchers and UFO enthusiasts exploring the boundaries between genuine anomalies and collective belief phenomena.