Images, clips & hoaxes
Eltanin seabed antenna
image interpretationEvidence status
natural identification
The standard identification is a carnivorous sponge, Chondrocladia concrescens. This is Southern Ocean expedition lore, not a land feature.
Editorial assessment of this proposition; not a numeric confidence score.
Claim or proposition being examined
The regular object photographed by USNS Eltanin in 1964 was interpreted as alien machinery or an antenna.
Limitations
The standard identification is a carnivorous sponge, Chondrocladia concrescens. This is Southern Ocean expedition lore, not a land feature.
Catalog review date reported: 2026-10-28. This is inherited catalog metadata, not a new verification of the linked source.
Historical 1888 scientific illustration of Cladorhiza concrescens (now Chondrocladia concrescens), offered for comparison with the Eltanin object. This is not the 1964 seabed photograph and does not independently identify the particular photographed object.
Alexander Agassiz, Three Cruises of the Blake (1888), figure 541; via Wikimedia Commons. Public domain.
Image source record · Reuse terms
Image rights and evidence limits
Public domain: published 1888; author Alexander Agassiz died 1910. Exact source marked PD-old-100-expired.
Image existence does not prove a linked claim. Consult image-specific captions and reuse conditions.
Sources and what they support
Links document the record, the claim’s circulation, an assessment, or reuse terms as labeled. A source link is not automatically corroboration.
- reference account tracing original photograph and identificationhttps://en.wikipedia.org/wiki/Eltanin_Antenna
- image reproduction provenance; not proof of a linked interpretationhttps://commons.wikimedia.org/wiki/File:Cladorhiza_concrescens_Agassiz_illustration.png
- image reuse conditionshttps://creativecommons.org/publicdomain/mark/1.0/
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