Researcher, Argentine
Silvia Pérez Simondini
Argentine ufologist and director of CEFORA, leading organized declassification efforts in South America
Background & Career
Silvia Pérez Simondini is a prominent Argentine ufologist based in Victoria, a city in the province of Entre Ríos, in northeastern Argentina. For decades, she has been at the forefront of organized UFO research in South America, combining grassroots investigation with systematic advocacy for government transparency on the UFO phenomenon. Her work represents a bridge between traditional ufology and institutional reform efforts modeled on successful disclosure campaigns in Brazil and other Latin American nations.
CEFORA & Institutional Leadership
Pérez Simondini co-founded and directs CEFORA (Comisión para el Estudio del Fenómeno OVNI en la República Argentina, or Commission for the Study of the UFO Phenomenon in the Argentinean Republic), an umbrella organization that unites multiple UFO research groups across Argentina under a single institutional framework. CEFORA's stated mission is to compile credible UFO documentation and petition the Argentine government for declassification of official files related to UFO sightings and encounters. This organizational approach allows researchers from different backgrounds and regions to coordinate their efforts and pool their evidence.
In December 2010, the Argentine Air Force formally announced the creation of its own committee to study the UFO phenomenon, a development that many attributed to sustained pressure from CEFORA and Pérez Simondini's advocacy work. This represented a significant institutional acknowledgment of UFO research legitimacy within Argentina's military establishment.
Presidential Declassification Campaign (2010)
On May 13, 2010, Pérez Simondini achieved a notable diplomatic milestone when she personally delivered a ten-page CEFORA report on UFO phenomena to Argentine President Cristina Fernández de Kirchner's chief of security and protocol during an official visit. The envelope contained comprehensive documentation on UFO file declassification efforts in other nations, along with a detailed list of CEFORA researchers and organizational structure. Within 48 hours, the Casa Rosada (Argentina's presidential office) acknowledged receipt and promised a formal response to CEFORA's request.
This high-level engagement demonstrated Pérez Simondini's ability to navigate political channels and present ufology as a legitimate policy matter worthy of executive consideration. Simultaneously, CEFORA launched a public signature campaign with the ambitious goal of collecting 100,000 signatures to present a UFO declassification petition to the Argentine Congress, following a model pioneered by Brazilian ufologists. This dual approach—combining top-down institutional engagement with bottom-up democratic pressure—positioned Argentina as a leading voice for transparency on UFO phenomena in Latin America.
Cattle Mutilation Research & Ongoing Work
Beyond institutional advocacy, Pérez Simondini has been actively involved in field investigations, particularly into cattle mutilation incidents throughout Argentina. She has collaborated closely with her daughter, Andrea Pérez Simondini, who is both a ufologist and a chemist—a combination that brings scientific rigor to investigations of alleged extraterrestrial phenomena. Their joint research into cattle mutilations connects these incidents to broader UFO activity patterns, examining injuries that conventional explanations (predators, disease, human vandalism) fail to account for.
Silvia's work has also extended to curating the Museo del Ovni (UFO Museum) in Victoria, which houses artifacts, documentation, and alleged evidence of UFO encounters collected over decades of research. The museum serves as both an archive and a public education center, introducing Argentine citizens to documented UFO cases and research methodologies. However, the museum drew controversy in 2024 when it was raided by local authorities, resulting in the confiscation of several items including an object described as an "alien foot." Despite this setback, the museum remains operative as a symbol of persistent ufological research in Argentina.
Notable claims
- Led 2010 presidential petition to Cristina Fernández de Kirchner for UFO declassification
- Founded CEFORA, uniting Argentine UFO research groups nationally
- Launched 100,000-signature congressional petition campaign for disclosure
- Investigated cattle mutilation incidents linked to UFO phenomena
- Operates Museo del Ovni in Victoria, Entre Ríos
Key works
- Director of Visión OVNI (UFO Vision) organization and museum in Victoria
- Co-founder and director of CEFORA
- Cattle mutilation field investigations throughout Argentina
- Advocacy for Argentine government UFO file declassification
- Collaborative research with daughter Andrea Pérez Simondini on anomalous phenomena
Watch
Estoy EN CRISIS con los OVNIS 🛸 Silvia Perez Simondini EXCLUSIVO
🛸 La CRISIS EXTRATERRESTRE de Silvia Perez Simondini | La Señal 412
CANAL 13. NO PODIAN CREER LO QUE HABIA EN EL MUSEO DEL OVNI"
EXCLUSIVO I Documentos Oficiales de Argentina y restos de Ovnis en MUSEO SILVIA PÉREZ SIMONDINI
CONFIRMADO I Exhibe MUSEO OVNI de Entre Ríos restos de DISCOS VOLADORES ESTRELLADOS: PÉREZ SIMONDINI
Also available

Witness of Another World
Documentary following filmmaker Alan Stivelman and astrophysicist Jacques Vallée investigating a close encounter case witnessed by a gaucho in Argentina. Explores the UFO phenomenon in an Argentine province with sensitivity and scientific analysis.
The Unexplained Files
Series episode 'Argentina UFO, Mothman and Morgellons Disease' investigates mysterious phenomena in Argentina including documented UFO sightings in Joaquin V Gonzalez where hundreds of sightings were recorded over 20 years and a 1995 crash in nearby mountain ranges.
Unidentified: Inside America's UFO Investigation
Series featuring former Pentagon investigator Luis Elizondo examining classified UFO cases across multiple continents including South America. Works with Argentine ufologists to expose government secrets surrounding unexplained aerial phenomena and international UFO hotspots.
Signal From the South: Argentina UFOs
Documentary examining Argentina's UFO sightings since the late 1940s, including major waves in 1955-1962 with reports from Navy pilots, military personnel, and civilian witnesses. Series investigates one of South America's most significant UFO hotspots and historical declassified cases.
Buying through these links supports the library. We may earn a commission.
Notes
- Argentina's X-Files - Pt 1, Open Minds
- Argentina: UFO Declassification Request Reaches the President, UFO Info
- CEFORA, Wikipedia
- Argentine Air Force Announces Committee to Study UFO Phenomenon, We Must Know
Filed under
ProvenanceAgent indexedUpdated 3mo ago4 sources
Drafted by the archive's AI research agent from the sources below; corrections from readers are reviewed and folded in.
- First indexed
- 29 JUL 26 // 20:20Z
- Last updated
- 29 JUL 26 // 20:20Z
- Argentina's X-Files - Pt 1, Open Minds
- Argentina: UFO Declassification Request Reaches the President, UFO Info
- CEFORA, Wikipedia
- Argentine Air Force Announces Committee to Study UFO Phenomenon, We Must Know