The Ebens are the most prominent and best-documented extraterrestrial species in the small body of literature that claims to originate from official U.S. government/military sources concerning Zeta Reticuli. They are almost exclusively associated with three related narratives:
-The 1964–1978 series of classified documents known as Project SERPO (allegedly a human–Eben exchange program)
-The earlier Betty and Barney Hill abduction case (1961), which is the first widely publicized case to mention beings from Zeta Reticuli
-The later testimony of Bob Lazar (1989), who described working on craft he believed came from Zeta Reticuli

All three sources describe beings that are now popularly called “Zeta Reticulans” or “Greys,” but the name Ebens is used almost exclusively within the SERPO material. Outside of these three clusters of testimony there is no independent, verified evidence of a species called the Ebens.

Betty and Barney Hill abduction (1961) – the first Zeta Reticuli reference
Date: September 19–20, 1961

Location: Rural New Hampshire, USA (along Route 3 near Indian Head)

Primary sources: Barney & Betty Hill hypnosis sessions with Dr. Benjamin Simon (1964), published account by John G. Fuller (The Interrupted Journey, 1966), NICAP investigation filesThis is chronologically the first publicly documented case to name Zeta Reticuli as the origin of the beings involved. Under separate hypnosis sessions in 1964, both Betty and Barney Hill described:
-Being taken aboard a disc-shaped craft by beings approximately 5 ft tall
-Large heads, slanted cat-like eyes, small mouth/nose, greyish skin
-Betty was shown a star map during the encounter; under hypnosis she drew it and later placed it on a real astronomical chart
-Marjorie Fish (amateur astronomer) analyzed Betty’s map in the late 1960s and concluded it most closely matched Zeta Reticuli 1 and 2 (two Sun-like stars 37 light-years away in the constellation Reticulum)

The Fish interpretation was popularized in the 1970s (especially after appearing in UFO Casebook magazine and on television). It remains the single most influential piece of evidence linking “Greys” to the Zeta Reticuli system. Skeptics note:
-The map is very approximate and contains few stars
-Many other star patterns have been proposed as matches
-Betty drew the map two years after the event, under hypnosis

Nevertheless, the Hill case is the origin of the term “Zeta Reticulan” in UFO culture.

Project SERPO / The Ebens (1965 - 1978 exchange program)
Date range of alleged events: 1965–1978

Public disclosure date: November 2005 – present (initial anonymous posts on AboveTopSecret.com, later compiled on serpo.org)

Primary public source: serpo.org (2005–2008 archive), Victor Martinez email list posts, later books by Len Kasten (Secret Journey to Planet Serpo, 2013) and Len Kasten & Bill RyanIn November 2005 an anonymous source (“Request Anonymous”) began posting a long series of emails to the UFO discussion list “The List” (moderated by Victor Martinez) claiming to be a serving or recently retired U.S. Defense Intelligence Agency (DIA) officer with access to a 3,000-page classified document titled Project SERPO. The core claim:

-In 1964 the U.S. recovered a downed alien craft and one living occupant near Corona, New Mexico (Roswell 1947 follow-up story)
-The being communicated that he was from the planet Serpo in the Zeta Reticuli binary star system
-After several years of communication (via radio and a portable device), the U.S. agreed to an exchange program: 12 American military personnel would travel to Serpo for 10 years (1965–1978)
-Ten men and two women were selected; one died on Serpo, one remained voluntarily, one returned early due to medical issues
-The travelers sent back periodic reports (hence the 3,000-page document)

Description of the Ebens (from SERPO postings):
-Height: 3.5–4.5 feet (most ~4 ft)
-Grey skin, smooth, no visible hair
-Large head, slanted almond-shaped eyes (black or very dark), small nose/mouth, small ears
-Thin body, long arms, four long fingers + thumb
-No visible external sex organs (later clarified as having internal reproductive system)
-Communicated primarily telepathically; also used a small translation device
-Planet Serpo: tidally locked to Zeta Reticuli 1, harsh environment, two suns, thin atmosphere, high radiation
-Society: highly organized, no money, no crime, small population (~250,000), communal living, advanced but simple technology

The story gained significant attention 2005–2008 but has been widely rejected by mainstream UFO researchers due to:
-No verifiable documents ever surfaced
-The anonymous source(s) changed stories multiple times
-Astronomical problems (Zeta Reticuli 1 & 2 are young, hot stars unlikely to support advanced life; tidal locking would create extreme temperature differences)
-Internal inconsistencies in the posted reports

Bob Lazar & Zeta Reticuli Craft (1989)
Date: November–December 1989 (KLAS-TV interviews)

Primary source: George Knapp’s interviews with “Dennis” (later identified as Bob Lazar), re-aired and expanded many times

Bob Lazar claimed he worked at S-4 (near Area 51) reverse-engineering nine alien craft, one of which came from Zeta Reticuli. He described the pilots (in documents he allegedly read) as:
-3–4 feet tall
-Grey skin
-Large heads, large black eyes
-Thin limbs

Lazar never used the term “Ebens” (that name is SERPO-specific), but his 1989 Zeta Reticuli reference is the second earliest public link between Greys and that star system (after the Hill case).

Summary & Credibility Assessment
-Betty & Barney Hill (1961) ? first public Zeta Reticuli reference (star map under hypnosis)  
-Bob Lazar (1989) ? second public Zeta Reticuli reference (craft origin)  
-Project SERPO (2005 disclosure of alleged 1965–78 events) ? only source to name the beings “Ebens” and provide detailed societal/physiological description

No physical evidence exists for any of these claims:
-No verified star map from the Hill case matches Zeta Reticuli unambiguously  
-No documents from SERPO have ever been authenticated  
-No independent corroboration of Lazar’s S-4 claims or Zeta Reticuli craft

Current status (2025)
The Ebens/Zeta Reticulans remain one of the most iconic “Grey” archetypes in popular UFO culture, but the name “Ebens” is used almost exclusively by people familiar with the SERPO story. Most researchers and experiencers simply call them Zeta Reticulans or “the Greys.”

The three main narratives are not considered credible by mainstream science or most academic UFO researchers, but they continue to exert strong influence in conspiracy, disclosure, and alternative-history communities.
 

The Ebens are the most prominent and best-documented extraterrestrial species in the small body of literature that claims to originate from official U.S. government/military sources concerning Zeta Reticuli. They are almost exclusively associated with three related narratives:
-The 1964–1978 series of classified documents known as Project SERPO (allegedly a human–Eben exchange program)
-The earlier Betty and Barney Hill abduction case (1961), which is the first widely publicized case to mention beings from Zeta Reticuli
-The later testimony of Bob Lazar (1989), who described working on craft he believed came from Zeta Reticuli

All three sources describe beings that are now popularly called “Zeta Reticulans” or “Greys,” but the name Ebens is used almost exclusively within the SERPO material. Outside of these three clusters of testimony there is no independent, verified evidence of a species called the Ebens.

Betty and Barney Hill abduction (1961) – the first Zeta Reticuli reference
Date: September 19–20, 1961

Location: Rural New Hampshire, USA (along Route 3 near Indian Head)

Primary sources: Barney & Betty Hill hypnosis sessions with Dr. Benjamin Simon (1964), published account by John G. Fuller (The Interrupted Journey, 1966), NICAP investigation filesThis is chronologically the first publicly documented case to name Zeta Reticuli as the origin of the beings involved. Under separate hypnosis sessions in 1964, both Betty and Barney Hill described:
-Being taken aboard a disc-shaped craft by beings approximately 5 ft tall
-Large heads, slanted cat-like eyes, small mouth/nose, greyish skin
-Betty was shown a star map during the encounter; under hypnosis she drew it and later placed it on a real astronomical chart
-Marjorie Fish (amateur astronomer) analyzed Betty’s map in the late 1960s and concluded it most closely matched Zeta Reticuli 1 and 2 (two Sun-like stars 37 light-years away in the constellation Reticulum)

The Fish interpretation was popularized in the 1970s (especially after appearing in UFO Casebook magazine and on television). It remains the single most influential piece of evidence linking “Greys” to the Zeta Reticuli system. Skeptics note:
-The map is very approximate and contains few stars
-Many other star patterns have been proposed as matches
-Betty drew the map two years after the event, under hypnosis

Nevertheless, the Hill case is the origin of the term “Zeta Reticulan” in UFO culture.

Project SERPO / The Ebens (1965 - 1978 exchange program)
Date range of alleged events: 1965–1978

Public disclosure date: November 2005 – present (initial anonymous posts on AboveTopSecret.com, later compiled on serpo.org)

Primary public source: serpo.org (2005–2008 archive), Victor Martinez email list posts, later books by Len Kasten (Secret Journey to Planet Serpo, 2013) and Len Kasten & Bill RyanIn November 2005 an anonymous source (“Request Anonymous”) began posting a long series of emails to the UFO discussion list “The List” (moderated by Victor Martinez) claiming to be a serving or recently retired U.S. Defense Intelligence Agency (DIA) officer with access to a 3,000-page classified document titled Project SERPO. The core claim:

-In 1964 the U.S. recovered a downed alien craft and one living occupant near Corona, New Mexico (Roswell 1947 follow-up story)
-The being communicated that he was from the planet Serpo in the Zeta Reticuli binary star system
-After several years of communication (via radio and a portable device), the U.S. agreed to an exchange program: 12 American military personnel would travel to Serpo for 10 years (1965–1978)
-Ten men and two women were selected; one died on Serpo, one remained voluntarily, one returned early due to medical issues
-The travelers sent back periodic reports (hence the 3,000-page document)

Description of the Ebens (from SERPO postings):
-Height: 3.5–4.5 feet (most ~4 ft)
-Grey skin, smooth, no visible hair
-Large head, slanted almond-shaped eyes (black or very dark), small nose/mouth, small ears
-Thin body, long arms, four long fingers + thumb
-No visible external sex organs (later clarified as having internal reproductive system)
-Communicated primarily telepathically; also used a small translation device
-Planet Serpo: tidally locked to Zeta Reticuli 1, harsh environment, two suns, thin atmosphere, high radiation
-Society: highly organized, no money, no crime, small population (~250,000), communal living, advanced but simple technology

The story gained significant attention 2005–2008 but has been widely rejected by mainstream UFO researchers due to:
-No verifiable documents ever surfaced
-The anonymous source(s) changed stories multiple times
-Astronomical problems (Zeta Reticuli 1 & 2 are young, hot stars unlikely to support advanced life; tidal locking would create extreme temperature differences)
-Internal inconsistencies in the posted reports

Bob Lazar & Zeta Reticuli Craft (1989)
Date: November–December 1989 (KLAS-TV interviews)

Primary source: George Knapp’s interviews with “Dennis” (later identified as Bob Lazar), re-aired and expanded many times

Bob Lazar claimed he worked at S-4 (near Area 51) reverse-engineering nine alien craft, one of which came from Zeta Reticuli. He described the pilots (in documents he allegedly read) as:
-3–4 feet tall
-Grey skin
-Large heads, large black eyes
-Thin limbs

Lazar never used the term “Ebens” (that name is SERPO-specific), but his 1989 Zeta Reticuli reference is the second earliest public link between Greys and that star system (after the Hill case).

Summary & Credibility Assessment
-Betty & Barney Hill (1961) ? first public Zeta Reticuli reference (star map under hypnosis)  
-Bob Lazar (1989) ? second public Zeta Reticuli reference (craft origin)  
-Project SERPO (2005 disclosure of alleged 1965–78 events) ? only source to name the beings “Ebens” and provide detailed societal/physiological description

No physical evidence exists for any of these claims:
-No verified star map from the Hill case matches Zeta Reticuli unambiguously  
-No documents from SERPO have ever been authenticated  
-No independent corroboration of Lazar’s S-4 claims or Zeta Reticuli craft

Current status (2025)
The Ebens/Zeta Reticulans remain one of the most iconic “Grey” archetypes in popular UFO culture, but the name “Ebens” is used almost exclusively by people familiar with the SERPO story. Most researchers and experiencers simply call them Zeta Reticulans or “the Greys.”

The three main narratives are not considered credible by mainstream science or most academic UFO researchers, but they continue to exert strong influence in conspiracy, disclosure, and alternative-history communities.